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From: Walker, David T. (david.walker_at_[hidden])
Date: 2007-03-23 13:58:19


I am presently trying to get OpenMPI up and running on a small cluster
of MacPros (dual dual-core Xeons) using TCP. Opne MPI was compiled using
the intel Fortran Compiler (9.1) and gcc. When I try to launch a job on
a remote node, orted starts on the remote node but then times out. I am
guessing that the problem is SSH related. Any thoughts?

Thanks,

Dave

Details:

I am using SSH, set up as outlined in the FAQ, using ssh-agent to allow
passwordless logins. The paths for all the libraries appear to be OK.

A simple MPI code (Hello_World_Fortran) launched on node01 will run OK
for up to four processors (all on node01). The output is shown here.

node01 1247% mpirun --debug-daemons -hostfile machinefile -np 4
Hello_World_Fortran
 Calling MPI_INIT
 Calling MPI_INIT
 Calling MPI_INIT
 Calling MPI_INIT
Fortran version of Hello World, rank 2
Rank 0 is present in Fortran version of Hello World.
Fortran version of Hello World, rank 3
Fortran version of Hello World, rank 1

For five processors mpirun tries to start an additional process on
node03. Everything launches the same on node01 (four instances of
Hello_World_Fortran are launched). On node03, orted starts, but times
out after 10 seconds and the output below is generated.

node01 1246% mpirun --debug-daemons -hostfile machinefile -np 5
Hello_World_Fortran
 Calling MPI_INIT
 Calling MPI_INIT
 Calling MPI_INIT
 Calling MPI_INIT
[node03:02422] [0,0,1]-[0,0,0] mca_oob_tcp_peer_send_blocking: send()
failed with errno=57
[node01.local:21427] ERROR: A daemon on node node03 failed to start as
expected.
[node01.local:21427] ERROR: There may be more information available from
[node01.local:21427] ERROR: the remote shell (see above).
[node01.local:21427] ERROR: The daemon exited unexpectedly with status
255.
forrtl: error (78): process killed (SIGTERM)
forrtl: error (78): process killed (SIGTERM)

Here is the ompi info:

node01 1248% ompi_info --all
                Open MPI: 1.1.2
   Open MPI SVN revision: r12073
                Open RTE: 1.1.2
   Open RTE SVN revision: r12073
                    OPAL: 1.1.2
       OPAL SVN revision: r12073
              MCA memory: darwin (MCA v1.0, API v1.0, Component v1.1.2)
           MCA maffinity: first_use (MCA v1.0, API v1.0, Component
v1.1.2)
               MCA timer: darwin (MCA v1.0, API v1.0, Component v1.1.2)
           MCA allocator: basic (MCA v1.0, API v1.0, Component v1.0)
           MCA allocator: bucket (MCA v1.0, API v1.0, Component v1.0)
                MCA coll: basic (MCA v1.0, API v1.0, Component v1.1.2)
                MCA coll: hierarch (MCA v1.0, API v1.0, Component
v1.1.2)
                MCA coll: self (MCA v1.0, API v1.0, Component v1.1.2)
                MCA coll: sm (MCA v1.0, API v1.0, Component v1.1.2)
                MCA coll: tuned (MCA v1.0, API v1.0, Component v1.1.2)
                  MCA io: romio (MCA v1.0, API v1.0, Component v1.1.2)
               MCA mpool: sm (MCA v1.0, API v1.0, Component v1.1.2)
                 MCA pml: ob1 (MCA v1.0, API v1.0, Component v1.1.2)
                 MCA bml: r2 (MCA v1.0, API v1.0, Component v1.1.2)
              MCA rcache: rb (MCA v1.0, API v1.0, Component v1.1.2)
                 MCA btl: self (MCA v1.0, API v1.0, Component v1.1.2)
                 MCA btl: sm (MCA v1.0, API v1.0, Component v1.1.2)
                 MCA btl: tcp (MCA v1.0, API v1.0, Component v1.0)
                MCA topo: unity (MCA v1.0, API v1.0, Component v1.1.2)
                 MCA osc: pt2pt (MCA v1.0, API v1.0, Component v1.0)
                 MCA gpr: null (MCA v1.0, API v1.0, Component v1.1.2)
                 MCA gpr: proxy (MCA v1.0, API v1.0, Component v1.1.2)
                 MCA gpr: replica (MCA v1.0, API v1.0, Component v1.1.2)
                 MCA iof: proxy (MCA v1.0, API v1.0, Component v1.1.2)
                 MCA iof: svc (MCA v1.0, API v1.0, Component v1.1.2)
                  MCA ns: proxy (MCA v1.0, API v1.0, Component v1.1.2)
                  MCA ns: replica (MCA v1.0, API v1.0, Component v1.1.2)
                 MCA oob: tcp (MCA v1.0, API v1.0, Component v1.0)
                 MCA ras: dash_host (MCA v1.0, API v1.0, Component
v1.1.2)
                 MCA ras: hostfile (MCA v1.0, API v1.0, Component
v1.1.2)
                 MCA ras: localhost (MCA v1.0, API v1.0, Component
v1.1.2)
                 MCA ras: xgrid (MCA v1.0, API v1.0, Component v1.1.2)
                 MCA rds: hostfile (MCA v1.0, API v1.0, Component
v1.1.2)
                 MCA rds: resfile (MCA v1.0, API v1.0, Component v1.1.2)
               MCA rmaps: round_robin (MCA v1.0, API v1.0, Component
v1.1.2)
                MCA rmgr: proxy (MCA v1.0, API v1.0, Component v1.1.2)
                MCA rmgr: urm (MCA v1.0, API v1.0, Component v1.1.2)
                 MCA rml: oob (MCA v1.0, API v1.0, Component v1.1.2)
                 MCA pls: fork (MCA v1.0, API v1.0, Component v1.1.2)
                 MCA pls: rsh (MCA v1.0, API v1.0, Component v1.1.2)
                 MCA pls: xgrid (MCA v1.0, API v1.0, Component v1.1.2)
                 MCA sds: env (MCA v1.0, API v1.0, Component v1.1.2)
                 MCA sds: pipe (MCA v1.0, API v1.0, Component v1.1.2)
                 MCA sds: seed (MCA v1.0, API v1.0, Component v1.1.2)
                 MCA sds: singleton (MCA v1.0, API v1.0, Component
v1.1.2)
                  Prefix: /usr/local
                  Bindir: /usr/local/bin
                  Libdir: /usr/local/lib
                  Incdir: /usr/local/include
               Pkglibdir: /usr/local/lib/openmpi
              Sysconfdir: /usr/local/etc
 Configured architecture: i386-apple-darwin8.7.3
           Configured by: root
           Configured on: Wed Jan 24 10:46:02 EST 2007
          Configure host: node01
                Built by: root
                Built on: Wed Jan 24 11:02:16 EST 2007
              Built host: node01
              C bindings: yes
            C++ bindings: yes
      Fortran77 bindings: yes (single underscore)
      Fortran90 bindings: yes
 Fortran90 bindings size: small
              C compiler: gcc
     C compiler absolute: /usr/bin/gcc
             C char size: 1
             C bool size: 1
            C short size: 2
              C int size: 4
             C long size: 4
            C float size: 4
           C double size: 8
          C pointer size: 4
            C char align: 1
            C bool align: 1
             C int align: 4
           C float align: 4
          C double align: 4
            C++ compiler: g++
   C++ compiler absolute: /usr/bin/g++
      Fortran77 compiler: ifort
  Fortran77 compiler abs: /usr/bin/ifort
      Fortran90 compiler: ifort
  Fortran90 compiler abs: /usr/bin/ifort
       Fort integer size: 4
       Fort logical size: 4
 Fort logical value true: -1
      Fort have integer1: yes
      Fort have integer2: yes
      Fort have integer4: yes
      Fort have integer8: yes
     Fort have integer16: no
         Fort have real4: yes
         Fort have real8: yes
        Fort have real16: yes
      Fort have complex8: yes
     Fort have complex16: yes
     Fort have complex32: yes
      Fort integer1 size: 1
      Fort integer2 size: 2
      Fort integer4 size: 4
      Fort integer8 size: 8
     Fort integer16 size: -1
          Fort real size: 4
         Fort real4 size: 4
         Fort real8 size: 8
        Fort real16 size: 16
      Fort dbl prec size: 4
          Fort cplx size: 4
      Fort dbl cplx size: 4
         Fort cplx8 size: 8
        Fort cplx16 size: 16
        Fort cplx32 size: 32
      Fort integer align: 1
     Fort integer1 align: 1
     Fort integer2 align: 1
     Fort integer4 align: 1
     Fort integer8 align: 1
    Fort integer16 align: -1
         Fort real align: 1
        Fort real4 align: 1
        Fort real8 align: 1
       Fort real16 align: 1
     Fort dbl prec align: 1
         Fort cplx align: 1
     Fort dbl cplx align: 1
        Fort cplx8 align: 1
       Fort cplx16 align: 1
       Fort cplx32 align: 1
             C profiling: yes
           C++ profiling: yes
     Fortran77 profiling: yes
     Fortran90 profiling: yes
          C++ exceptions: no
          Thread support: posix (mpi: no, progress: no)
            Build CFLAGS: -O3 -DNDEBUG -fno-strict-aliasing
          Build CXXFLAGS: -O3 -DNDEBUG -finline-functions
            Build FFLAGS:
           Build FCFLAGS:
           Build LDFLAGS: -export-dynamic -Wl,-u,_munmap
-Wl,-multiply_defined,suppress
              Build LIBS:
    Wrapper extra CFLAGS:
  Wrapper extra CXXFLAGS:
    Wrapper extra FFLAGS:
   Wrapper extra FCFLAGS:
   Wrapper extra LDFLAGS: -Wl,-u,_munmap
-Wl,-multiply_defined,suppress
      Wrapper extra LIBS: -ldl
  Internal debug support: no
     MPI parameter check: runtime
Memory profiling support: no
Memory debugging support: no
         libltdl support: yes
                 MCA mca: parameter "mca_param_files" (current value:
 
"/Users/dwalker/.openmpi/mca-params.conf:/usr/local/etc/openmpi-mca-para
ms.conf")
                          Path for MCA configuration files containing
default parameter values
                 MCA mca: parameter "mca_component_path" (current value:
"/usr/local/lib/openmpi:/Users/dwalker/.openmpi/components")
                          Path where to look for Open MPI and ORTE
components
                 MCA mca: parameter "mca_verbose" (current value:
<none>)
                          Top-level verbosity parameter
                 MCA mca: parameter "mca_component_show_load_errors"
(current value: "1")
                          Whether to show errors for components that
failed to load or not
                 MCA mca: parameter "mca_component_disable_dlopen"
(current value: "0")
                          Whether to attempt to disable opening dynamic
components or not
                 MCA mpi: parameter "mpi_param_check" (current value:
"1")
                          Whether you want MPI API parameters checked at
run-time or not. Possible values are 0 (no checking) and 1
                          (perform checking at run-time)
                 MCA mpi: parameter "mpi_yield_when_idle" (current
value: "0")
                          Yield the processor when waiting for MPI
communication (for MPI processes, will default to 1 when oversubscribing
                          nodes)
                 MCA mpi: parameter "mpi_event_tick_rate" (current
value: "-1")
                          How often to progress TCP communications (0 =
never, otherwise specified in microseconds)
                 MCA mpi: parameter "mpi_show_handle_leaks" (current
value: "0")
                          Whether MPI_FINALIZE shows all MPI handles
that were not freed or not
                 MCA mpi: parameter "mpi_no_free_handles" (current
value: "0")
                          Whether to actually free MPI objects when
their handles are freed
                 MCA mpi: parameter "mpi_show_mca_params" (current
value: "0")
                          Whether to show all MCA parameter value during
MPI_INIT or not (good for reproducability of MPI jobs)
                 MCA mpi: parameter "mpi_show_mca_params_file" (current
value: <none>)
                          If mpi_show_mca_params is true, setting this
string to a valid filename tells Open MPI to dump all the MCA
                          parameter values into a file suitable for
reading via the mca_param_files parameter (good for reproducability of
                          MPI jobs)
                 MCA mpi: parameter "mpi_paffinity_alone" (current
value: "0")
                          If nonzero, assume that this job is the only
(set of) process(es) running on each node and bind processes to
                          processors, starting with processor ID 0
                 MCA mpi: parameter "mpi_keep_peer_hostnames" (current
value: "1")
                          If nonzero, save the string hostnames of all
MPI peer processes (mostly for error / debugging output messages).
                          This can add quite a bit of memory usage to
each MPI process.
                 MCA mpi: parameter "mpi_abort_delay" (current value:
"0")
                          If nonzero, print out an identifying message
when MPI_ABORT is invoked (hostname, PID of the process that called
                          MPI_ABORT) and delay for that many seconds
before exiting (a negative delay value means to never abort). This
                          allows attaching of a debugger before quitting
the job.
                 MCA mpi: information "mpi_abort_print_stack" (value:
"0")
                          If nonzero, print out a stack trace when
MPI_ABORT is invoked
                 MCA mpi: parameter "mpi_leave_pinned" (current value:
"0")
                          leave_pinned
                 MCA mpi: parameter "mpi_leave_pinned_pipeline" (current
value: "0")
                          leave_pinned_pipeline
                MCA orte: parameter "orte_base_user_debugger" (current
value: "totalview @mpirun@ -a @mpirun_args@ : fxp @mpirun@ -a
                          @mpirun_args@")
                          Sequence of user-level debuggers to search for
in orterun
                MCA orte: parameter "orte_debug" (current value: "0")
                          Whether or not to enable debugging output for
all ORTE components (0 or 1)
                MCA opal: parameter "opal_signal" (current value:
"6,10,8,11")
                          If a signal is received, display the stack
trace frame
              MCA memory: parameter "memory" (current value: <none>)
                          Default selection set of components for the
memory framework (<none> means "use all components that can be
                          found")
              MCA memory: parameter "memory_base_verbose" (current
value: "0")
                          Verbosity level for the memory framework (0 =
no verbosity)
              MCA memory: parameter "memory_darwin_priority" (current
value: "0")
           MCA paffinity: parameter "paffinity" (current value: <none>)
                          Default selection set of components for the
paffinity framework (<none> means "use all components that can be
                          found")
           MCA maffinity: parameter "maffinity" (current value: <none>)
                          Default selection set of components for the
maffinity framework (<none> means "use all components that can be
                          found")
           MCA maffinity: parameter "maffinity_first_use_priority"
(current value: "10")
                          Priority of the first_use maffinity component
               MCA timer: parameter "timer" (current value: <none>)
                          Default selection set of components for the
timer framework (<none> means "use all components that can be found")
               MCA timer: parameter "timer_base_verbose" (current value:
"0")
                          Verbosity level for the timer framework (0 =
no verbosity)
               MCA timer: parameter "timer_darwin_priority" (current
value: "0")
           MCA allocator: parameter "allocator" (current value: <none>)
                          Default selection set of components for the
allocator framework (<none> means "use all components that can be
                          found")
           MCA allocator: parameter "allocator_base_verbose" (current
value: "0")
                          Verbosity level for the allocator framework (0
= no verbosity)
           MCA allocator: parameter "allocator_basic_priority" (current
value: "0")
           MCA allocator: parameter "allocator_bucket_num_buckets"
(current value: "30")
           MCA allocator: parameter "allocator_bucket_priority" (current
value: "0")
                MCA coll: parameter "coll" (current value: <none>)
                          Default selection set of components for the
coll framework (<none> means "use all components that can be found")
                MCA coll: parameter "coll_base_verbose" (current value:
"0")
                          Verbosity level for the coll framework (0 = no
verbosity)
                MCA coll: parameter "coll_basic_priority" (current
value: "10")
                          Priority of the basic coll component
                MCA coll: parameter "coll_basic_crossover" (current
value: "4")
                          Minimum number of processes in a communicator
before using the logarithmic algorithms
                MCA coll: parameter "coll_hierarch_priority" (current
value: "0")
                          Priority of the hierarchical coll component
                MCA coll: parameter "coll_hierarch_verbose" (current
value: "0")
                          Turn verbose message of the hierarchical coll
component on/off
                MCA coll: parameter "coll_hierarch_use_rdma" (current
value: "0")
                          Switch from the send btl list used to detect
hierarchies to the rdma btl list
                MCA coll: parameter "coll_hierarch_ignore_sm" (current
value: "0")
                          Ignore sm protocol when detecting hierarchies.
Required to enable the usage of protocol specific collective
                          operations
                MCA coll: parameter "coll_hierarch_symmetric" (current
value: "0")
                          Assume symmetric configuration
                MCA coll: parameter "coll_self_priority" (current value:
"75")
                MCA coll: parameter "coll_sm_priority" (current value:
"0")
                          Priority of the sm coll component
                MCA coll: parameter "coll_sm_control_size" (current
value: "4096")
                          Length of the control data -- should usually
be either the length of a cache line on most SMPs, or the size of a
                          page on machines that support direct memory
affinity page placement (in bytes)
                MCA coll: parameter "coll_sm_bootstrap_filename"
(current value: "shared_mem_sm_bootstrap")
                          Filename (in the Open MPI session directory)
of the coll sm component bootstrap rendezvous mmap file
                MCA coll: parameter "coll_sm_bootstrap_num_segments"
(current value: "8")
                          Number of segments in the bootstrap file
                MCA coll: parameter "coll_sm_fragment_size" (current
value: "8192")
                          Fragment size (in bytes) used for passing data
through shared memory (will be rounded up to the nearest
                          control_size size)
                MCA coll: parameter "coll_sm_mpool" (current value:
"sm")
                          Name of the mpool component to use
                MCA coll: parameter "coll_sm_comm_in_use_flags" (current
value: "2")
                          Number of "in use" flags, used to mark a
message passing area segment as currently being used or not (must be >=
2
                          and <= comm_num_segments)
                MCA coll: parameter "coll_sm_comm_num_segments" (current
value: "8")
                          Number of segments in each communicator's
shared memory message passing area (must be >= 2, and must be a multiple
                          of comm_in_use_flags)
                MCA coll: parameter "coll_sm_tree_degree" (current
value: "4")
                          Degree of the tree for tree-based operations
(must be => 1 and <= min(control_size, 255))
                MCA coll: information
"coll_sm_shared_mem_used_bootstrap" (value: "160")
                          Amount of shared memory used in the shared
memory bootstrap area (in bytes)
                MCA coll: parameter "coll_sm_info_num_procs" (current
value: "4")
                          Number of processes to use for the calculation
of the shared_mem_size MCA information parameter (must be => 2)
                MCA coll: information "coll_sm_shared_mem_used_data"
(value: "548864")
                          Amount of shared memory used in the shared
memory data area for info_num_procs processes (in bytes)
                MCA coll: parameter "coll_tuned_priority" (current
value: "30")
                          Priority of the tuned coll component
                MCA coll: parameter
"coll_tuned_pre_allocate_memory_comm_size_limit" (current value:
"32768")
                          Size of communicator were we stop
pre-allocating memory for the fixed internal buffer used for message
requests
                          etc that is hung off the communicator data
segment. I.e. if you have a 100'000 nodes you might not want to
                          pre-allocate 200'000 request handle slots per
communicator instance!
                MCA coll: parameter "coll_tuned_use_dynamic_rules"
(current value: "0")
                          Switch used to decide if we use static (if
statements) or dynamic (built at runtime) decision function rules
                MCA coll: parameter "coll_tuned_init_tree_fanout"
(current value: "4")
                          Inital fanout used in the tree topologies for
each communicator. This is only an initial guess, if a tuned
                          collective needs a different fanout for an
operation, it build it dynamically. This parameter is only for the
                          first guess and might save a little time
                MCA coll: parameter "coll_tuned_init_chain_fanout"
(current value: "4")
                          Inital fanout used in the chain (fanout
followed by pipeline) topologies for each communicator. This is only an
                          initial guess, if a tuned collective needs a
different fanout for an operation, it build it dynamically. This
                          parameter is only for the first guess and
might save a little time
                MCA coll: parameter "coll_tuned_allreduce_algorithm"
(current value: "0")
                          Which allreduce algorithm is used. Can be
locked down to choice of: 0 ignore, 1 basic linear, 2 nonoverlapping
                          (tuned reduce + tuned bcast)
                MCA coll: parameter
"coll_tuned_allreduce_algorithm_segmentsize" (current value: "0")
                          Segment size in bytes used by default for
allreduce algorithms. Only has meaning if algorithm is forced and
                          supports segmenting. 0 bytes means no
segmentation.
                MCA coll: parameter
"coll_tuned_allreduce_algorithm_tree_fanout" (current value: "4")
                          Fanout for n-tree used for allreduce
algorithms. Only has meaning if algorithm is forced and supports n-tree
topo
                          based operation.
                MCA coll: parameter
"coll_tuned_allreduce_algorithm_chain_fanout" (current value: "4")
                          Fanout for chains used for allreduce
algorithms. Only has meaning if algorithm is forced and supports chain
topo
                          based operation.
                MCA coll: parameter "coll_tuned_alltoall_algorithm"
(current value: "0")
                          Which alltoall algorithm is used. Can be
locked down to choice of: 0 ignore, 1 basic linear, 2 pairwise, 3:
                          modified bruck, 4: two proc only.
                MCA coll: parameter
"coll_tuned_alltoall_algorithm_segmentsize" (current value: "0")
                          Segment size in bytes used by default for
alltoall algorithms. Only has meaning if algorithm is forced and
                          supports segmenting. 0 bytes means no
segmentation.
                MCA coll: parameter
"coll_tuned_alltoall_algorithm_tree_fanout" (current value: "4")
                          Fanout for n-tree used for alltoall
algorithms. Only has meaning if algorithm is forced and supports n-tree
topo
                          based operation.
                MCA coll: parameter
"coll_tuned_alltoall_algorithm_chain_fanout" (current value: "4")
                          Fanout for chains used for alltoall
algorithms. Only has meaning if algorithm is forced and supports chain
topo
                          based operation.
                MCA coll: parameter "coll_tuned_barrier_algorithm"
(current value: "0")
                          Which barrier algorithm is used. Can be locked
down to choice of: 0 ignore, 1 linear, 2 double ring, 3: recursive
                          doubling 4: bruck, 5: two proc only, 6: step
based bmtree
                MCA coll: parameter "coll_tuned_bcast_algorithm"
(current value: "0")
                          Which bcast algorithm is used. Can be locked
down to choice of: 0 ignore, 1 basic linear, 2 chain, 3: pipeline, 4:
                          split binary tree, 5: binary tree.
                MCA coll: parameter
"coll_tuned_bcast_algorithm_segmentsize" (current value: "0")
                          Segment size in bytes used by default for
bcast algorithms. Only has meaning if algorithm is forced and supports
                          segmenting. 0 bytes means no segmentation.
                MCA coll: parameter
"coll_tuned_bcast_algorithm_tree_fanout" (current value: "4")
                          Fanout for n-tree used for bcast algorithms.
Only has meaning if algorithm is forced and supports n-tree topo
                          based operation.
                MCA coll: parameter
"coll_tuned_bcast_algorithm_chain_fanout" (current value: "4")
                          Fanout for chains used for bcast algorithms.
Only has meaning if algorithm is forced and supports chain topo based
                          operation.
                MCA coll: parameter "coll_tuned_reduce_algorithm"
(current value: "0")
                          Which reduce algorithm is used. Can be locked
down to choice of: 0 ignore, 1 linear, 2 chain, 3 pipeline
                MCA coll: parameter
"coll_tuned_reduce_algorithm_segmentsize" (current value: "0")
                          Segment size in bytes used by default for
reduce algorithms. Only has meaning if algorithm is forced and supports
                          segmenting. 0 bytes means no segmentation.
                MCA coll: parameter
"coll_tuned_reduce_algorithm_tree_fanout" (current value: "4")
                          Fanout for n-tree used for reduce algorithms.
Only has meaning if algorithm is forced and supports n-tree topo
                          based operation.
                MCA coll: parameter
"coll_tuned_reduce_algorithm_chain_fanout" (current value: "4")
                          Fanout for chains used for reduce algorithms.
Only has meaning if algorithm is forced and supports chain topo
                          based operation.
                  MCA io: parameter "io_base_freelist_initial_size"
(current value: "16")
                          Initial MPI-2 IO request freelist size
                  MCA io: parameter "io_base_freelist_max_size" (current
value: "64")
                          Max size of the MPI-2 IO request freelist
                  MCA io: parameter "io_base_freelist_increment"
(current value: "16")
                          Increment size of the MPI-2 IO request
freelist
                  MCA io: parameter "io" (current value: <none>)
                          Default selection set of components for the io
framework (<none> means "use all components that can be found")
                  MCA io: parameter "io_base_verbose" (current value:
"0")
                          Verbosity level for the io framework (0 = no
verbosity)
                  MCA io: parameter "io_romio_priority" (current value:
"10")
                          Priority of the io romio component
                  MCA io: parameter "io_romio_delete_priority" (current
value: "10")
                          Delete priority of the io romio component
                  MCA io: parameter
"io_romio_enable_parallel_optimizations" (current value: "0")
                          Enable set of Open MPI-added options to
improve collective file i/o performance
               MCA mpool: parameter "mpool" (current value: <none>)
                          Default selection set of components for the
mpool framework (<none> means "use all components that can be found")
               MCA mpool: parameter "mpool_base_verbose" (current value:
"0")
                          Verbosity level for the mpool framework (0 =
no verbosity)
               MCA mpool: parameter "mpool_sm_size" (current value:
"536870912")
               MCA mpool: parameter "mpool_sm_allocator" (current value:
"bucket")
               MCA mpool: parameter "mpool_sm_priority" (current value:
"0")
               MCA mpool: parameter "mpool_base_use_mem_hooks" (current
value: "0")
                          use memory hooks for deregistering freed
memory
               MCA mpool: parameter "mpool_use_mem_hooks" (current
value: "0")
                          (deprecated, use mpool_base_use_mem_hooks)
                 MCA pml: parameter "pml" (current value: "ob1")
                          Default selection set of components for the
pml framework (<none> means "use all components that can be found")
                 MCA pml: parameter "pml_base_verbose" (current value:
"0")
                          Verbosity level for the pml framework (0 = no
verbosity)
                 MCA pml: parameter "pml_ob1_free_list_num" (current
value: "4")
                 MCA pml: parameter "pml_ob1_free_list_max" (current
value: "-1")
                 MCA pml: parameter "pml_ob1_free_list_inc" (current
value: "64")
                 MCA pml: parameter "pml_ob1_priority" (current value:
"1")
                 MCA pml: parameter "pml_ob1_eager_limit" (current
value: "131072")
                 MCA pml: parameter "pml_ob1_send_pipeline_depth"
(current value: "3")
                 MCA pml: parameter "pml_ob1_recv_pipeline_depth"
(current value: "4")
                 MCA bml: parameter "bml" (current value: <none>)
                          Default selection set of components for the
bml framework (<none> means "use all components that can be found")
                 MCA bml: parameter "bml_base_verbose" (current value:
"0")
                          Verbosity level for the bml framework (0 = no
verbosity)
                 MCA bml: parameter "bml_r2_priority" (current value:
"0")
              MCA rcache: parameter "rcache" (current value: <none>)
                          Default selection set of components for the
rcache framework (<none> means "use all components that can be
                          found")
              MCA rcache: parameter "rcache_base_verbose" (current
value: "0")
                          Verbosity level for the rcache framework (0 =
no verbosity)
              MCA rcache: parameter "rcache_rb_priority" (current value:
"0")
                 MCA btl: parameter "btl_base_debug" (current value:
"0")
                          If btl_base_debug is 1 standard debug is
output, if > 1 verbose debug is output
                 MCA btl: parameter "btl" (current value: <none>)
                          Default selection set of components for the
btl framework (<none> means "use all components that can be found")
                 MCA btl: parameter "btl_base_verbose" (current value:
"0")
                          Verbosity level for the btl framework (0 = no
verbosity)
                 MCA btl: parameter "btl_self_free_list_num" (current
value: "0")
                          Number of fragments by default
                 MCA btl: parameter "btl_self_free_list_max" (current
value: "-1")
                          Maximum number of fragments
                 MCA btl: parameter "btl_self_free_list_inc" (current
value: "32")
                          Increment by this number of fragments
                 MCA btl: parameter "btl_self_eager_limit" (current
value: "131072")
                          Eager size fragmeng (before the rendez-vous
ptotocol)
                 MCA btl: parameter "btl_self_min_send_size" (current
value: "262144")
                          Minimum fragment size after the rendez-vous
                 MCA btl: parameter "btl_self_max_send_size" (current
value: "262144")
                          Maximum fragment size after the rendez-vous
                 MCA btl: parameter "btl_self_min_rdma_size" (current
value: "2147483647")
                          Maximum fragment size for the RDMA transfer
                 MCA btl: parameter "btl_self_max_rdma_size" (current
value: "2147483647")
                          Maximum fragment size for the RDMA transfer
                 MCA btl: parameter "btl_self_exclusivity" (current
value: "65536")
                          Device exclusivity
                 MCA btl: parameter "btl_self_flags" (current value:
"10")
                          Active behavior flags
                 MCA btl: parameter "btl_self_priority" (current value:
"0")
                 MCA btl: parameter "btl_sm_free_list_num" (current
value: "8")
                 MCA btl: parameter "btl_sm_free_list_max" (current
value: "-1")
                 MCA btl: parameter "btl_sm_free_list_inc" (current
value: "256")
                 MCA btl: parameter "btl_sm_max_procs" (current value:
"-1")
                 MCA btl: parameter "btl_sm_sm_extra_procs" (current
value: "2")
                 MCA btl: parameter "btl_sm_mpool" (current value: "sm")
                 MCA btl: parameter "btl_sm_eager_limit" (current value:
"1024")
                 MCA btl: parameter "btl_sm_max_frag_size" (current
value: "8192")
                 MCA btl: parameter "btl_sm_size_of_cb_queue" (current
value: "128")
                 MCA btl: parameter "btl_sm_cb_lazy_free_freq" (current
value: "120")
                 MCA btl: parameter "btl_sm_priority" (current value:
"0")
                 MCA btl: parameter "btl_tcp_if_include" (current value:
<none>)
                 MCA btl: parameter "btl_tcp_if_exclude" (current value:
"lo")
                 MCA btl: parameter "btl_tcp_free_list_num" (current
value: "8")
                 MCA btl: parameter "btl_tcp_free_list_max" (current
value: "-1")
                 MCA btl: parameter "btl_tcp_free_list_inc" (current
value: "32")
                 MCA btl: parameter "btl_tcp_sndbuf" (current value:
"131072")
                 MCA btl: parameter "btl_tcp_rcvbuf" (current value:
"131072")
                 MCA btl: parameter "btl_tcp_endpoint_cache" (current
value: "30720")
                 MCA btl: parameter "btl_tcp_exclusivity" (current
value: "0")
                 MCA btl: parameter "btl_tcp_eager_limit" (current
value: "65536")
                 MCA btl: parameter "btl_tcp_min_send_size" (current
value: "65536")
                 MCA btl: parameter "btl_tcp_max_send_size" (current
value: "131072")
                 MCA btl: parameter "btl_tcp_min_rdma_size" (current
value: "131072")
                 MCA btl: parameter "btl_tcp_max_rdma_size" (current
value: "2147483647")
                 MCA btl: parameter "btl_tcp_flags" (current value:
"10")
                 MCA btl: parameter "btl_tcp_priority" (current value:
"0")
                 MCA btl: parameter "btl_base_include" (current value:
<none>)
                 MCA btl: parameter "btl_base_exclude" (current value:
<none>)
                MCA topo: parameter "topo" (current value: <none>)
                          Default selection set of components for the
topo framework (<none> means "use all components that can be found")
                MCA topo: parameter "topo_base_verbose" (current value:
"0")
                          Verbosity level for the topo framework (0 = no
verbosity)
                 MCA osc: parameter "osc" (current value: <none>)
                          Default selection set of components for the
osc framework (<none> means "use all components that can be found")
                 MCA osc: parameter "osc_base_verbose" (current value:
"0")
                          Verbosity level for the osc framework (0 = no
verbosity)
                 MCA osc: parameter "osc_pt2pt_fence_sync_method"
(current value: "reduce_scatter")
                          How to synchronize fence: reduce_scatter,
allreduce, alltoall
                 MCA osc: parameter "osc_pt2pt_eager_send" (current
value: "0")
                          Attempt to start data movement during
communication call, instead of at synchrnoization time. Info key of
same
                          name overrides this value, if info key given.
                 MCA osc: parameter "osc_pt2pt_no_locks" (current value:
"0")
                          Enable optimizations available only if
MPI_LOCK is not used.
                 MCA osc: parameter "osc_pt2pt_priority" (current value:
"0")
              MCA errmgr: parameter "errmgr" (current value: <none>)
                          Default selection set of components for the
errmgr framework (<none> means "use all components that can be
                          found")
                 MCA gpr: parameter "gpr_base_maxsize" (current value:
"2147483647")
                 MCA gpr: parameter "gpr_base_blocksize" (current value:
"512")
                 MCA gpr: parameter "gpr" (current value: <none>)
                          Default selection set of components for the
gpr framework (<none> means "use all components that can be found")
                 MCA gpr: parameter "gpr_null_priority" (current value:
"0")
                 MCA gpr: parameter "gpr_proxy_debug" (current value:
"0")
                 MCA gpr: parameter "gpr_proxy_priority" (current value:
"0")
                 MCA gpr: parameter "gpr_replica_debug" (current value:
"0")
                 MCA gpr: parameter "gpr_replica_isolate" (current
value: "0")
                 MCA gpr: parameter "gpr_replica_priority" (current
value: "0")
                 MCA iof: parameter "iof_base_window_size" (current
value: "4096")
                 MCA iof: parameter "iof_base_service" (current value:
"0.0.0")
                 MCA iof: parameter "iof" (current value: <none>)
                          Default selection set of components for the
iof framework (<none> means "use all components that can be found")
                 MCA iof: parameter "iof_proxy_debug" (current value:
"1")
                 MCA iof: parameter "iof_proxy_priority" (current value:
"0")
                 MCA iof: parameter "iof_svc_debug" (current value: "1")
                 MCA iof: parameter "iof_svc_priority" (current value:
"0")
                  MCA ns: parameter "ns" (current value: <none>)
                          Default selection set of components for the ns
framework (<none> means "use all components that can be found")
                  MCA ns: parameter "ns_proxy_debug" (current value:
"0")
                  MCA ns: parameter "ns_proxy_maxsize" (current value:
"2147483647")
                  MCA ns: parameter "ns_proxy_blocksize" (current value:
"512")
                  MCA ns: parameter "ns_proxy_priority" (current value:
"0")
                  MCA ns: parameter "ns_replica_debug" (current value:
"0")
                  MCA ns: parameter "ns_replica_isolate" (current value:
"0")
                  MCA ns: parameter "ns_replica_maxsize" (current value:
"2147483647")
                  MCA ns: parameter "ns_replica_blocksize" (current
value: "512")
                  MCA ns: parameter "ns_replica_priority" (current
value: "0")
                 MCA oob: parameter "oob" (current value: <none>)
                          Default selection set of components for the
oob framework (<none> means "use all components that can be found")
                 MCA oob: parameter "oob_base_verbose" (current value:
"0")
                          Verbosity level for the oob framework (0 = no
verbosity)
                 MCA oob: parameter "oob_tcp_peer_limit" (current value:
"-1")
                 MCA oob: parameter "oob_tcp_peer_retries" (current
value: "60")
                 MCA oob: parameter "oob_tcp_debug" (current value: "0")
                 MCA oob: parameter "oob_tcp_include" (current value:
<none>)
                 MCA oob: parameter "oob_tcp_exclude" (current value:
<none>)
                 MCA oob: parameter "oob_tcp_sndbuf" (current value:
"131072")
                 MCA oob: parameter "oob_tcp_rcvbuf" (current value:
"131072")
                 MCA oob: parameter "oob_tcp_connect_timeout" (current
value: "10")
                          connect() timeout in seconds, before trying
next interface
                 MCA oob: parameter "oob_tcp_priority" (current value:
"0")
                 MCA ras: parameter "ras" (current value: <none>)
                          Default selection set of components for the
ras framework (<none> means "use all components that can be found")
                 MCA ras: parameter "ras_dash_host_priority" (current
value: "5")
                          Selection priority for the dash_host RAS
component
                 MCA ras: parameter "ras_hostfile_priority" (current
value: "10")
                          Selection priority for the hostfile RAS
component
                 MCA ras: parameter "ras_localhost_priority" (current
value: "0")
                          Selection priority for the localhost RAS
component
                 MCA ras: parameter "ras_xgrid_priority" (current value:
"100")
                 MCA rds: parameter "rds" (current value: <none>)
                          Default selection set of components for the
rds framework (<none> means "use all components that can be found")
                 MCA rds: parameter "rds_hostfile_debug" (current value:
"0")
                          Toggle debug output for hostfile RDS component
                 MCA rds: parameter "rds_hostfile_path" (current value:
"/usr/local/etc/openmpi-default-hostfile")
                          ORTE Host filename
                 MCA rds: parameter "rds_hostfile_priority" (current
value: "0")
                 MCA rds: parameter "rds_resfile_debug" (current value:
"0")
                          Toggle debug output for resfile RDS component
                 MCA rds: parameter "rds_resfile_name" (current value:
<none>)
                          ORTE Resource filename
                 MCA rds: parameter "rds_resfile_priority" (current
value: "0")
               MCA rmaps: parameter "rmaps_base_verbose" (current value:
"0")
                          Verbosity level for the rmaps framework
               MCA rmaps: parameter "rmaps_base_schedule_policy"
(current value: "slot")
                          Scheduling Policy for RMAPS. [slot | node]
               MCA rmaps: parameter "rmaps_base_schedule_local" (current
value: "1")
                          If nonzero, allow scheduling MPI applications
on the same node as mpirun (default). If zero, do not schedule any
                          MPI applications on the same node as mpirun
               MCA rmaps: parameter "rmaps_base_no_oversubscribe"
(current value: "0")
                          If nonzero, then do not allow oversubscription
of nodes - mpirun will return an error if there aren't enough nodes
                          to launch all processes without
oversubscribing
               MCA rmaps: parameter "rmaps" (current value: <none>)
                          Default selection set of components for the
rmaps framework (<none> means "use all components that can be found")
               MCA rmaps: parameter "rmaps_round_robin_debug" (current
value: "1")
                          Toggle debug output for Round Robin RMAPS
component
               MCA rmaps: parameter "rmaps_round_robin_priority"
(current value: "1")
                          Selection priority for Round Robin RMAPS
component
                MCA rmgr: parameter "rmgr" (current value: <none>)
                          Default selection set of components for the
rmgr framework (<none> means "use all components that can be found")
                MCA rmgr: parameter "rmgr_proxy_priority" (current
value: "0")
                MCA rmgr: parameter "rmgr_urm_priority" (current value:
"0")
                 MCA rml: parameter "rml" (current value: <none>)
                          Default selection set of components for the
rml framework (<none> means "use all components that can be found")
                 MCA rml: parameter "rml_base_verbose" (current value:
"0")
                          Verbosity level for the rml framework (0 = no
verbosity)
                 MCA rml: parameter "rml_oob_priority" (current value:
"0")
                 MCA pls: parameter "pls" (current value: <none>)
                          Default selection set of components for the
pls framework (<none> means "use all components that can be found")
                 MCA pls: parameter "pls_fork_reap" (current value: "1")
                          Whether to wait to reap all children before
finalizing or not
                 MCA pls: parameter "pls_fork_reap_timeout" (current
value: "0")
                          When killing children processes, first send a
SIGTERM, then wait at least this timeout (in seconds), then send a
                          SIGKILL
                 MCA pls: parameter "pls_fork_priority" (current value:
"1")
                          Priority of this component
                 MCA pls: parameter "pls_fork_debug" (current value:
"0")
                          Whether to enable debugging output or not
                 MCA pls: parameter "pls_rsh_debug" (current value: "0")
                          Whether or not to enable debugging output for
the rsh pls component (0 or 1)
                 MCA pls: parameter "pls_rsh_num_concurrent" (current
value: "128")
                          How many pls_rsh_agent instances to invoke
concurrently (must be > 0)
                 MCA pls: parameter "pls_rsh_orted" (current value:
"orted")
                          The command name that the rsh pls component
will invoke for the ORTE daemon
                 MCA pls: parameter "pls_rsh_priority" (current value:
"10")
                          Priority of the rsh pls component
                 MCA pls: parameter "pls_rsh_delay" (current value: "1")
                          Delay (in seconds) between invocations of the
remote agent, but only used when the "debug" MCA parameter is true,
                          or the top-level MCA debugging is enabled
(otherwise this value is ignored)
                 MCA pls: parameter "pls_rsh_reap" (current value: "1")
                          If set to 1, wait for all the processes to
complete before exiting. Otherwise, quit immediately -- without
                          waiting for confirmation that all other
processes in the job have completed.
                 MCA pls: parameter "pls_rsh_assume_same_shell" (current
value: "1")
                          If set to 1, assume that the shell on the
remote node is the same as the shell on the local node. Otherwise,
                          probe for what the remote shell.
                 MCA pls: parameter "pls_rsh_agent" (current value: "ssh
: rsh")
                          The command used to launch executables on
remote nodes (typically either "ssh" or "rsh")
                 MCA pls: parameter "pls_xgrid_orted" (current value:
"orted")
                 MCA pls: parameter "pls_xgrid_priority" (current value:
"20")
                 MCA pls: parameter "pls_xgrid_delete_job" (current
value: "1")
                 MCA sds: parameter "sds" (current value: <none>)
                          Default selection set of components for the
sds framework (<none> means "use all components that can be found")
                 MCA sds: parameter "sds_base_verbose" (current value:
"0")
                          Verbosity level for the sds framework (0 = no
verbosity)
                 MCA sds: parameter "sds_env_priority" (current value:
"0")
                 MCA sds: parameter "sds_pipe_priority" (current value:
"0")
                 MCA sds: parameter "sds_seed_priority" (current value:
"0")
                 MCA sds: parameter "sds_singleton_priority" (current
value: "0")
                 MCA soh: parameter "soh" (current value: <none>)
                          Default selection set of components for the
soh framework (<none> means "use all components that can be found")