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From: Daniel Rozenbaum (drozenbaum_at_[hidden])
Date: 2007-09-12 22:50:17


Hello, I'm working on an MPI application for which I recently started using Open MPI instead of LAM/MPI. Both with Open MPI and LAM/MPI it mostly runs ok, but there're a number of cases under which the application terminates abnormally when using LAM/MPI, and hangs when using Open MPI. I haven't been able to reduce the example reproducing the problem, so every time it takes about an hour of running time before the application hangs. It hangs right before it's supposed to end properly. The master and all the slave processes are showing in "top" consuming 100% CPU. The application just hangs there like that until I interrupt it. Here's the command line: orterun --prefix /path/to/openmpi -mca btl tcp,self -x PATH -x LD_LIBRARY_PATH --hostfile hostfile1 /path/to/app_executable <app params> hostfile1: host1 slots=3 host2 slots=4 host3 slots=4 host4 slots=4 host5 slots=4 host6 slots=4 host7 slots=4 host8 slots=4 host9 slots=4 host10 slots=4 host11 slots=4 host12 slots=4 host13 slots=4 host14 slots=4 Each host is a dual-CPU dual-core Intel box running Red Hat Enterprise Server 4. I caught the following error messages on app's stderr during the run: [host1][0,1,0][btl_tcp_frag.c:202:mca_btl_tcp_frag_recv] mca_btl_tcp_frag_recv: readv failed with errno=110 [host8][0,1,29][btl_tcp_frag.c:202:mca_btl_tcp_frag_recv] mca_btl_tcp_frag_recv: readv failed with errno=113 <later> [host1][0,1,0][btl_tcp_frag.c:202:mca_btl_tcp_frag_recv] mca_btl_tcp_frag_recv: readv failed with errno=110 Excerpts from strace output, and ompi_info are attached below. Any advice would be greatly appreciated! Thanks in advance, Daniel strace on the orterun process: poll([{fd=6, events=POLLIN}, {fd=7, events=POLLIN}, {fd=5, events=POLLIN}, {fd=8, events=POLLIN}, {fd=9, events=POLLIN}, {fd=10, events=POLLIN}, {fd=11, events=POLLIN}, {fd=12, events=POLLIN}, {fd=13, events=POLLIN}, {fd=14, events=POLLIN}, {fd=15, events=POLLIN}, {fd=16, events=POLLIN}, {fd=17, events=POLLIN}, {fd=18, events=POLLIN}, {fd=19, events=POLLIN}, {fd=20, events=POLLIN}, {fd=0, events=POLLIN}, {fd=21, events=POLLIN}, {fd=22, events=POLLIN}, {fd=23, events=POLLIN}, {fd=24, events=POLLIN}, {fd=25, events=POLLIN}, {fd=26, events=POLLIN}, {fd=27, events=POLLIN}, {fd=28, events=POLLIN}, {fd=29, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}, {fd=34, events=POLLIN}, {fd=33, events=POLLIN}, {fd=32, events=POLLIN}, {fd=35, events=POLLIN}, ...], 71, 1000) = 0 rt_sigprocmask(SIG_BLOCK, [INT USR1 USR2 TERM CHLD], NULL, 8) = 0 rt_sigaction(SIGCHLD, {0x2a956c7e70, [INT USR1 USR2 TERM CHLD], SA_RESTORER|SA_RESTART, 0x3fdf80c4f0}, NULL, 8) = 0 rt_sigaction(SIGTERM, {0x2a956c7e70, [INT USR1 USR2 TERM CHLD], SA_RESTORER|SA_RESTART, 0x3fdf80c4f0}, NULL, 8) = 0 rt_sigaction(SIGINT, {0x2a956c7e70, [INT USR1 USR2 TERM CHLD], SA_RESTORER|SA_RESTART, 0x3fdf80c4f0}, NULL, 8) = 0 rt_sigaction(SIGUSR1, {0x2a956c7e70, [INT USR1 USR2 TERM CHLD], SA_RESTORER|SA_RESTART, 0x3fdf80c4f0}, NULL, 8) = 0 rt_sigaction(SIGUSR2, {0x2a956c7e70, [INT USR1 USR2 TERM CHLD], SA_RESTORER|SA_RESTART, 0x3fdf80c4f0}, NULL, 8) = 0 sched_yield() = 0 rt_sigprocmask(SIG_BLOCK, [INT USR1 USR2 TERM CHLD], NULL, 8) = 0 rt_sigaction(SIGCHLD, {0x2a956c7e70, [INT USR1 USR2 TERM CHLD], SA_RESTORER|SA_RESTART, 0x3fdf80c4f0}, NULL, 8) = 0 rt_sigaction(SIGTERM, {0x2a956c7e70, [INT USR1 USR2 TERM CHLD], SA_RESTORER|SA_RESTART, 0x3fdf80c4f0}, NULL, 8) = 0 rt_sigaction(SIGINT, {0x2a956c7e70, [INT USR1 USR2 TERM CHLD], SA_RESTORER|SA_RESTART, 0x3fdf80c4f0}, NULL, 8) = 0 rt_sigaction(SIGUSR1, {0x2a956c7e70, [INT USR1 USR2 TERM CHLD], SA_RESTORER|SA_RESTART, 0x3fdf80c4f0}, NULL, 8) = 0 rt_sigaction(SIGUSR2, {0x2a956c7e70, [INT USR1 USR2 TERM CHLD], SA_RESTORER|SA_RESTART, 0x3fdf80c4f0}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [INT USR1 USR2 TERM CHLD], NULL, 8) = 0 poll([{fd=6, events=POLLIN}, {fd=7, events=POLLIN}, {fd=5, events=POLL strace on the master process: rt_sigprocmask(SIG_BLOCK, [CHLD], NULL, 8) = 0 rt_sigaction(SIGCHLD, {0x2a972cae70, [CHLD], SA_RESTORER|SA_RESTART, 0x3fdf80c4f0}, NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], NULL, 8) = 0 rt_sigaction(SIGCHLD, {0x2a972cae70, [CHLD], SA_RESTORER|SA_RESTART, 0x3fdf80c4f0}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [CHLD], NULL, 8) = 0 poll([{fd=5, events=POLLIN}, {fd=6, events=POLLIN}, {fd=7, events=POLLIN}, {fd=8, events=POLLIN}, {fd=14, events=POLLIN}, {fd=11, events=POLLIN}, {fd=12, events=POLLIN}, {fd=13, events=POLLIN}, {fd=16, events=POLLIN}, {fd=15, events=POLLIN}, {fd=20, events=POLLIN}, {fd=21, events=POLLIN}, {fd=22, events=POLLIN}, {fd=23, events=POLLIN}, {fd=67, events=POLLIN}, {fd=25, events=POLLIN}, {fd=66, events=POLLIN}, {fd=26, events=POLLIN}, {fd=27, events=POLLIN}, {fd=28, events=POLLIN}, {fd=29, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}, {fd=32, events=POLLIN}, {fd=33, events=POLLIN}, {fd=34, events=POLLIN}, {fd=35, events=POLLIN}, {fd=36, events=POLLIN}, {fd=37, events=POLLIN}, {fd=38, events=POLLIN}, {fd=39, events=POLLIN}, {fd=40, events=POLLIN}, ...], 56, 0) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], NULL, 8) = 0 rt_sigaction(SIGCHLD, {0x2a972cae70, [CHLD], SA_RESTORER|SA_RESTART, 0x3fdf80c4f0}, NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], NULL, 8) = 0 rt_sigaction(SIGCHLD, {0x2a972cae70, [CHLD], SA_RESTORER|SA_RESTART, 0x3fdf80c4f0}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [CHLD], NULL, 8) = 0 poll([{fd=5, events=POLLIN}, {fd=6, events=POLLIN}, {fd=7, events=POLLIN}, {fd=8, events=POLLIN}, {fd=14, events=POLLIN}, {fd=11, events=POLLIN}, {fd=12, events=POLLIN}, {fd=13, events=POLLIN}, {fd=16, events=POLLIN}, {fd=15, events=POLLIN}, {fd=20, events=POLLIN}, {fd=21, events=POLLIN}, {fd=22, events=POLLIN}, {fd=23, events=POLLIN}, {fd=67, events=POLLIN}, {fd=25, events=POLLIN}, {fd=66, events=POLLIN}, {fd=26, events=POLLIN}, {fd=27, events=POLLIN}, {fd=28, events=POLLIN}, {fd=29, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}, {fd=32, events=POLLIN}, {fd=33, events=POLLIN}, {fd=34, events=POLLIN}, {fd=35, events=POLLIN}, {fd=36, events=POLLIN}, {fd=37, events=POLLIN}, {fd=38, events=POLLIN}, {fd=39, events=POLLIN}, {fd=40, events=POLLIN}, ...], 56, 0) = 0 strace on one of the slaves: rt_sigprocmask(SIG_BLOCK, [CHLD], NULL, 8) = 0 rt_sigaction(SIGCHLD, {0x2a972cae70, [CHLD], SA_RESTORER|SA_RESTART, 0x3c71c0c4f0}, NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], NULL, 8) = 0 rt_sigaction(SIGCHLD, {0x2a972cae70, [CHLD], SA_RESTORER|SA_RESTART, 0x3c71c0c4f0}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [CHLD], NULL, 8) = 0 poll([{fd=5, events=POLLIN}, {fd=6, events=POLLIN}, {fd=7, events=POLLIN}, {fd=8, events=POLLIN}, {fd=11, events=POLLIN}, {fd=12, events=POLLIN}, {fd=13, events=POLLIN}, {fd=15, events=POLLIN}, {fd=14, events=POLLIN}, {fd=16, events=POLLIN}, {fd=17, events=POLLIN}, {fd=18, events=POLLIN}, {fd=19, events=POLLIN}, {fd=20, events=POLLIN}, {fd=21, events=POLLIN}, {fd=22, events=POLLIN}, {fd=23, events=POLLIN}], 17, 0) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], NULL, 8) = 0 rt_sigaction(SIGCHLD, {0x2a972cae70, [CHLD], SA_RESTORER|SA_RESTART, 0x3c71c0c4f0}, NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], NULL, 8) = 0 rt_sigaction(SIGCHLD, {0x2a972cae70, [CHLD], SA_RESTORER|SA_RESTART, 0x3c71c0c4f0}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [CHLD], NULL, 8) = 0 poll([{fd=5, events=POLLIN}, {fd=6, events=POLLIN}, {fd=7, events=POLLIN}, {fd=8, events=POLLIN}, {fd=11, events=POLLIN}, {fd=12, events=POLLIN}, {fd=13, events=POLLIN}, {fd=15, events=POLLIN}, {fd=14, events=POLLIN}, {fd=16, events=POLLIN}, {fd=17, events=POLLIN}, {fd=18, events=POLLIN}, {fd=19, events=POLLIN}, {fd=20, events=POLLIN}, {fd=21, events=POLLIN}, {fd=22, events=POLLIN}, {fd=23, events=POLLIN}], 17, 0) = 0 ompi_info --all: Open MPI: 1.2.3 Open MPI SVN revision: r15136 Open RTE: 1.2.3 Open RTE SVN revision: r15136 OPAL: 1.2.3 OPAL SVN revision: r15136 MCA backtrace: execinfo (MCA v1.0, API v1.0, Component v1.2.3) MCA memory: ptmalloc2 (MCA v1.0, API v1.0, Component v1.2.3) MCA paffinity: linux (MCA v1.0, API v1.0, Component v1.2.3) MCA maffinity: first_use (MCA v1.0, API v1.0, Component v1.2.3) MCA maffinity: libnuma (MCA v1.0, API v1.0, Component v1.2.3) MCA timer: linux (MCA v1.0, API v1.0, Component v1.2.3) MCA installdirs: env (MCA v1.0, API v1.0, Component v1.2.3) MCA installdirs: config (MCA v1.0, API v1.0, Component v1.2.3) 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 v1.2.3) MCA coll: self (MCA v1.0, API v1.0, Component v1.2.3) MCA coll: sm (MCA v1.0, API v1.0, Component v1.2.3) MCA coll: tuned (MCA v1.0, API v1.0, Component v1.2.3) MCA io: romio (MCA v1.0, API v1.0, Component v1.2.3) MCA mpool: rdma (MCA v1.0, API v1.0, Component v1.2.3) MCA mpool: sm (MCA v1.0, API v1.0, Component v1.2.3) MCA pml: cm (MCA v1.0, API v1.0, Component v1.2.3) MCA pml: ob1 (MCA v1.0, API v1.0, Component v1.2.3) MCA bml: r2 (MCA v1.0, API v1.0, Component v1.2.3) MCA rcache: vma (MCA v1.0, API v1.0, Component v1.2.3) MCA btl: self (MCA v1.0, API v1.0.1, Component v1.2.3) MCA btl: sm (MCA v1.0, API v1.0.1, Component v1.2.3) MCA btl: tcp (MCA v1.0, API v1.0.1, Component v1.0) MCA topo: unity (MCA v1.0, API v1.0, Component v1.2.3) MCA osc: pt2pt (MCA v1.0, API v1.0, Component v1.2.3) MCA errmgr: hnp (MCA v1.0, API v1.3, Component v1.2.3) MCA errmgr: orted (MCA v1.0, API v1.3, Component v1.2.3) MCA errmgr: proxy (MCA v1.0, API v1.3, Component v1.2.3) MCA gpr: null (MCA v1.0, API v1.0, Component v1.2.3) MCA gpr: proxy (MCA v1.0, API v1.0, Component v1.2.3) MCA gpr: replica (MCA v1.0, API v1.0, Component v1.2.3) MCA iof: proxy (MCA v1.0, API v1.0, Component v1.2.3) MCA iof: svc (MCA v1.0, API v1.0, Component v1.2.3) MCA ns: proxy (MCA v1.0, API v2.0, Component v1.2.3) MCA ns: replica (MCA v1.0, API v2.0, Component v1.2.3) MCA oob: tcp (MCA v1.0, API v1.0, Component v1.0) MCA ras: dash_host (MCA v1.0, API v1.3, Component v1.2.3) MCA ras: gridengine (MCA v1.0, API v1.3, Component v1.2.3) MCA ras: localhost (MCA v1.0, API v1.3, Component v1.2.3) MCA ras: slurm (MCA v1.0, API v1.3, Component v1.2.3) MCA rds: hostfile (MCA v1.0, API v1.3, Component v1.2.3) MCA rds: proxy (MCA v1.0, API v1.3, Component v1.2.3) MCA rds: resfile (MCA v1.0, API v1.3, Component v1.2.3) MCA rmaps: round_robin (MCA v1.0, API v1.3, Component v1.2.3) MCA rmgr: proxy (MCA v1.0, API v2.0, Component v1.2.3) MCA rmgr: urm (MCA v1.0, API v2.0, Component v1.2.3) MCA rml: oob (MCA v1.0, API v1.0, Component v1.2.3) MCA pls: gridengine (MCA v1.0, API v1.3, Component v1.2.3) MCA pls: proxy (MCA v1.0, API v1.3, Component v1.2.3) MCA pls: rsh (MCA v1.0, API v1.3, Component v1.2.3) MCA pls: slurm (MCA v1.0, API v1.3, Component v1.2.3) MCA sds: env (MCA v1.0, API v1.0, Component v1.2.3) MCA sds: pipe (MCA v1.0, API v1.0, Component v1.2.3) MCA sds: seed (MCA v1.0, API v1.0, Component v1.2.3) MCA sds: singleton (MCA v1.0, API v1.0, Component v1.2.3) MCA sds: slurm (MCA v1.0, API v1.0, Component v1.2.3) Prefix: /path/to/openmpi Bindir: /path/to/openmpi/bin Libdir: /path/to/openmpi/lib Incdir: /path/to/openmpi/include Pkglibdir: /path/to/openmpi/lib/openmpi Sysconfdir: /path/to/openmpi/etc Configured architecture: x86_64-unknown-linux-gnu Configured by: user1 Configured on: Tue Sep 11 15:57:23 EDT 2007 Configure host: host1.domain.com Built by: user1 Built on: Tue Sep 11 16:09:44 EDT 2007 Built host: host1.domain.com C bindings: yes C++ bindings: yes Fortran77 bindings: yes (all) Fortran90 bindings: no Fortran90 bindings size: na 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: 8 C float size: 4 C double size: 8 C pointer size: 8 C char align: 1 C bool align: 1 C int align: 4 C float align: 4 C double align: 8 C++ compiler: g++ C++ compiler absolute: /usr/bin/g++ Fortran77 compiler: g77 Fortran77 compiler abs: /usr/bin/g77 Fortran90 compiler: none Fortran90 compiler abs: none 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: no Fort have complex8: yes Fort have complex16: yes Fort have complex32: no 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: -1 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: -1 Fort integer align: 4 Fort integer1 align: 1 Fort integer2 align: 2 Fort integer4 align: 4 Fort integer8 align: 8 Fort integer16 align: -1 Fort real align: 4 Fort real4 align: 4 Fort real8 align: 8 Fort real16 align: -1 Fort dbl prec align: 4 Fort cplx align: 4 Fort dbl cplx align: 4 Fort cplx8 align: 4 Fort cplx16 align: 8 Fort cplx32 align: -1 C profiling: yes C++ profiling: yes Fortran77 profiling: yes Fortran90 profiling: no C++ exceptions: no Thread support: posix (mpi: no, progress: no) Build CFLAGS: -O3 -DNDEBUG -finline-functions -fno-strict-aliasing -pthread Build CXXFLAGS: -O3 -DNDEBUG -finline-functions -pthread Build FFLAGS: Build FCFLAGS: Build LDFLAGS: -export-dynamic Build LIBS: -lnsl -lutil -lm Wrapper extra CFLAGS: -pthread Wrapper extra CXXFLAGS: -pthread Wrapper extra FFLAGS: -pthread Wrapper extra FCFLAGS: -pthread Wrapper extra LDFLAGS: Wrapper extra LIBS: -ldl -Wl,--export-dynamic -lnsl -lutil -lm -ldl Internal debug support: no MPI parameter check: runtime Memory profiling support: no Memory debugging support: no libltdl support: yes Heterogeneous support: yes mpirun default --prefix: no MCA mca: parameter "mca_param_files" (current value: "/home/user1/.openmpi/mca-params.conf:/path/to/openmpi/etc/openmpi-mca-params.conf") Path for MCA configuration files containing default parameter values MCA mca: parameter "mca_component_path" (current value: "/path/to/openmpi/lib/openmpi:/home/user1/.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: parameter "mpi_abort_print_stack" (current value: "0") If nonzero, print out a stack trace when MPI_ABORT is invoked MCA mpi: parameter "mpi_preconnect_all" (current value: "0") Whether to force MPI processes to create connections / warmup with *all* peers during MPI_INIT (vs. making connections lazily -- upon the first MPI traffic between each process peer pair) MCA mpi: parameter "mpi_preconnect_oob" (current value: "0") Whether to force MPI processes to fully wire-up the OOB system between MPI processes. MCA mpi: parameter "mpi_leave_pinned" (current value: "0") Whether to use the "leave pinned" protocol or not. Enabling this setting can help bandwidth performance when repeatedly sending and receiving large messages with the same buffers over RDMA-based networks. MCA mpi: parameter "mpi_leave_pinned_pipeline" (current value: "0") Whether to use the "leave pinned pipeline" protocol or not. MCA orte: parameter "orte_debug" (current value: "0") Top-level ORTE debug switch MCA orte: parameter "orte_no_daemonize" (current value: "0") Whether to properly daemonize the ORTE daemons or not 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_abort_timeout" (current value: "10") Time to wait [in seconds] before giving up on aborting an ORTE operation MCA orte: parameter "orte_timing" (current value: "0") Request that critical timing loops be measured MCA opal: parameter "opal_signal" (current value: "6,7,8,11") If a signal is received, display the stack trace frame MCA backtrace: parameter "backtrace" (current value: <none>) Default selection set of components for the backtrace framework (<none> means "use all components that can be found") MCA backtrace: parameter "backtrace_base_verbose" (current value: "0") Verbosity level for the backtrace framework (0 = no verbosity) MCA backtrace: parameter "backtrace_execinfo_priority" (current value: "0") 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_ptmalloc2_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 paffinity: parameter "paffinity_linux_priority" (current value: "10") Priority of the linux paffinity component MCA paffinity: information "paffinity_linux_have_cpu_set_t" (value: "1") Whether this component was compiled on a system with the type cpu_set_t or not (1 = yes, 0 = no) MCA paffinity: information "paffinity_linux_CPU_ZERO_ok" (value: "1") Whether this component was compiled on a system where CPU_ZERO() is functional or broken (1 = functional, 0 = broken/not available) MCA paffinity: information "paffinity_linux_sched_setaffinity_num_params" (value: "3") The number of parameters that sched_set_affinity() takes on the machine where this component was compiled 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 maffinity: parameter "maffinity_libnuma_priority" (current value: "25") Priority of the libnuma 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_linux_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_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: "216") 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_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_use_dynamic_rules" (current value: "0") Switch used to decide if we use static (compiled/if statements) or dynamic (built at runtime) decision function rules 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_rdma_rcache_name" (current value: "vma") The name of the registration cache the mpool should use MCA mpool: parameter "mpool_rdma_rcache_size_limit" (current value: "0") the maximum size of registration cache in bytes. 0 is unlimited (default 0) MCA mpool: parameter "mpool_rdma_print_stats" (current value: "0") print pool usage statistics at the end of the run MCA mpool: parameter "mpool_rdma_priority" (current value: "0") MCA mpool: parameter "mpool_sm_allocator" (current value: "bucket") Name of allocator component to use with sm mpool MCA mpool: parameter "mpool_sm_max_size" (current value: "536870912") Maximum size of the sm mpool shared memory file MCA mpool: parameter "mpool_sm_min_size" (current value: "134217728") Minimum size of the sm mpool shared memory file MCA mpool: parameter "mpool_sm_per_peer_size" (current value: "33554432") Size (in bytes) to allocate per local peer in the sm mpool shared memory file, bounded by min_size and max_size 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 mpool: parameter "mpool_base_disable_sbrk" (current value: "0") use mallopt to override calling sbrk (doesn't return memory to OS!) MCA mpool: parameter "mpool_disable_sbrk" (current value: "0") (deprecated, use mca_mpool_base_disable_sbrk) MCA pml: parameter "pml" (current value: <none>) 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_cm_free_list_num" (current value: "4") Initial size of request free lists MCA pml: parameter "pml_cm_free_list_max" (current value: "-1") Maximum size of request free lists MCA pml: parameter "pml_cm_free_list_inc" (current value: "64") Number of elements to add when growing request free lists MCA pml: parameter "pml_cm_priority" (current value: "30") CM PML selection priority 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: "20") 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_show_unreach_errors" (current value: "1") Show error message when procs are unreachable 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_vma_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: "64") MCA btl: parameter "btl_sm_exclusivity" (current value: "65535") MCA btl: parameter "btl_sm_latency" (current value: "100") 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: "4096") MCA btl: parameter "btl_sm_max_frag_size" (current value: "32768") 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: "122") 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 btl: parameter "btl_base_warn_component_unused" (current value: "1") This parameter is used to turn on warning messages when certain NICs are not used MCA mtl: parameter "mtl" (current value: <none>) Default selection set of components for the mtl framework (<none> means "use all components that can be found") MCA mtl: parameter "mtl_base_verbose" (current value: "0") Verbosity level for the mtl framework (0 = no verbosity) 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_no_locks" (current value: "0") Enable optimizations available only if MPI_LOCK is not used. MCA osc: parameter "osc_pt2pt_eager_limit" (current value: "16384") Max size of eagerly sent data 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 errmgr: parameter "errmgr_hnp_debug" (current value: "0") MCA errmgr: parameter "errmgr_hnp_priority" (current value: "0") MCA errmgr: parameter "errmgr_orted_debug" (current value: "0") MCA errmgr: parameter "errmgr_orted_priority" (current value: "0") MCA errmgr: parameter "errmgr_proxy_debug" (current value: "0") MCA errmgr: parameter "errmgr_proxy_priority" (current value: "0") 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_sndbuf" (current value: "131072") MCA oob: parameter "oob_tcp_rcvbuf" (current value: "131072") MCA oob: parameter "oob_tcp_if_include" (current value: <none>) Comma-delimited list of TCP interfaces to use MCA oob: parameter "oob_tcp_if_exclude" (current value: <none>) Comma-delimited list of TCP interfaces to exclude MCA oob: parameter "oob_tcp_connect_sleep" (current value: "1") Enable (1) / disable (0) random sleep for connection wireup MCA oob: parameter "oob_tcp_listen_mode" (current value: "event") Mode for HNP to accept incoming connections: event, listen_thread MCA oob: parameter "oob_tcp_listen_thread_max_queue" (current value: "10") High water mark for queued accepted socket list size MCA oob: parameter "oob_tcp_listen_thread_max_time" (current value: "10") Maximum amount of time (in milliseconds) to wait between processing accepted socket list MCA oob: parameter "oob_tcp_accept_spin_count" (current value: "10") Number of times to let accept return EWOULDBLOCK before updating accepted socket list MCA oob: parameter "oob_tcp_priority" (current value: "0") MCA ras: parameter "ras" (current value: <none>) MCA ras: parameter "ras_dash_host_priority" (current value: "5") Selection priority for the dash_host RAS component MCA ras: parameter "ras_gridengine_debug" (current value: "0") Enable debugging output for the gridengine ras component MCA ras: parameter "ras_gridengine_priority" (current value: "100") Priority of the gridengine ras component MCA ras: parameter "ras_gridengine_verbose" (current value: "0") Enable verbose output for the gridengine ras component MCA ras: parameter "ras_gridengine_show_jobid" (current value: "0") Show the JOB_ID of the Grid Engine job MCA ras: parameter "ras_localhost_priority" (current value: "0") Selection priority for the localhost RAS component MCA ras: parameter "ras_slurm_priority" (current value: "75") Priority of the slurm ras component MCA rds: parameter "rds" (current value: <none>) MCA rds: parameter "rds_hostfile_debug" (current value: "0") Toggle debug output for hostfile RDS component MCA rds: parameter "rds_hostfile_path" (current value: "/path/to/openmpi/etc/openmpi-default-hostfile") ORTE Host filename MCA rds: parameter "rds_hostfile_priority" (current value: "0") MCA rds: parameter "rds_proxy_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: "unspec") Scheduling Policy for RMAPS. [slot | node] MCA rmaps: parameter "rmaps_base_pernode" (current value: "0") Launch one ppn as directed MCA rmaps: parameter "rmaps_base_n_pernode" (current value: "-1") Launch n procs/node MCA rmaps: parameter "rmaps_base_no_schedule_local" (current value: "0") If false, allow scheduling MPI applications on the same node as mpirun (default). If true, do not schedule any MPI applications on the same node as mpirun MCA rmaps: parameter "rmaps_base_no_oversubscribe" (current value: "0") If true, 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_base_reuse_daemons" (current value: "0") If nonzero, reuse daemons to launch dynamically spawned processes. If zero, do not reuse daemons (default) 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_base_verbose" (current value: "0") Verbosity level for the pls framework (0 = no verbosity) MCA pls: parameter "pls_gridengine_debug" (current value: "0") Enable debugging of gridengine pls component MCA pls: parameter "pls_gridengine_verbose" (current value: "0") Enable verbose output of the gridengine qrsh -inherit command MCA pls: parameter "pls_gridengine_priority" (current value: "100") Priority of the gridengine pls component MCA pls: parameter "pls_gridengine_orted" (current value: "orted") The command name that the gridengine pls component will invoke for the ORTE daemon MCA pls: parameter "pls_proxy_priority" (current value: "0") 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_force_rsh" (current value: "0") Force the launcher to always use rsh, even for local daemons 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_slurm_debug" (current value: "0") Enable debugging of slurm pls MCA pls: parameter "pls_slurm_priority" (current value: "75") Default selection priority MCA pls: parameter "pls_slurm_orted" (current value: "orted") Command to use to start proxy orted MCA pls: parameter "pls_slurm_args" (current value: <none>) Custom arguments to srun 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 sds: parameter "sds_slurm_priority" (current value: "0")