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Subject: Re: [OMPI users] Program hangs
From: vasilis gkanis (gkanis_at_[hidden])
Date: 2009-11-20 03:20:02


Hello,

I also experience a similar problem with the MUMPS solver, when I run it on a
cluster. After several hours of running the code does not produce any results,
although the command top shows that the program occupies 100% of the CPU.

The difference here, however, is that the same program runs fine on my PC. The
differences between my PC and the cluster are:
1) 32bit vs 64-bit(cluster)
2) intel compiler vs portland compiler(cluster)

Any thoughts on what might cause this?

Thank you,
Vasilis

On Friday 20 November 2009 03:50:17 am Jiaye Li wrote:
> Hello
>
> I installed openmpi-1.3.3 on my single node(cpu) intel 64bit quad-core
> machine. The compiler info is:
>
>
> ***************************************************************************
> *********************************** intel-icc101018-10.1.018-1.i386
> libgcc-4.4.0-4.i586
> gcc-4.4.0-4.i586
> gcc-gfortran-4.4.0-4.i586
> gcc-c++-4.4.0-4.i586
> intel-ifort101018-10.1.018-1.i386
>
> and the architecture is:
>
> processor : 0
> vendor_id : GenuineIntel
> cpu family : 6
> model : 23
> model name : Intel(R) Core(TM)2 Quad CPU Q9550 @ 2.83GHz
> stepping : 10
> cpu MHz : 2825.937
> cache size : 6144 KB
> physical id : 0
> siblings : 4
> core id : 0
> cpu cores : 4
> apicid : 0
> initial apicid : 0
> fdiv_bug : no
> hlt_bug : no
> f00f_bug : no
> coma_bug : no
> fpu : yes
> fpu_exception : yes
> cpuid level : 13
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
> cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm
> constant_tsc arch_perfmon pebs bts pni dtes64 monitor ds_cpl vmx smx est
> tm2 ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm tpr_shadow vnmi flexpriority
> bogomips : 5651.87
> clflush size : 64
> power management:
>
> ***************************************************************************
> ***********************************
>
> I compiled PWscf program with openmpi and tested the program. At the
> beginning, the execution of PW went on well, but after about 10 h, when
> the program is going to finish. The program hang there, but the cpu time
> is still occupied. (100% taken up by the program). There seems to be
> something wrong, somewhere. Any ideas? Thank you in advance.
>
> This is the config.log of Ompi:
>
> ***************************************************************************
> *********************************** This file contains any messages
> produced by compilers while
> running configure, to aid debugging if configure makes a mistake.
>
> It was created by Open MPI configure 1.3.3, which was
> generated by GNU Autoconf 2.63. Invocation command line was
>
> $ ./configure --prefix=/opt/openmpi-1.3.3 --disable-static CC=gcc
> FC=ifort F77=ifort --enable-shared
>
> ## --------- ##
> ## Platform. ##
> ## --------- ##
>
> hostname = localhost
> uname -m = i686
> uname -r = 2.6.29.4-167.fc11.i686.PAE
> uname -s = Linux
> uname -v = #1 SMP Wed May 27 17:28:22 EDT 2009
>
> /usr/bin/uname -p = unknown
> /bin/uname -X = unknown
>
> /bin/arch = i686
> /usr/bin/arch -k = unknown
> /usr/convex/getsysinfo = unknown
> /usr/bin/hostinfo = unknown
> /bin/machine = unknown
> /usr/bin/oslevel = unknown
> /bin/universe = unknown
>
> PATH: /home/jy/Download/XCrySDen-1.5.21-src-all
> PATH: /home/jy/Download/XCrySDen-1.5.21-src-all
> PATH: /home/jy/Download/XCrySDen-1.5.21-src-all
> PATH: /home/jy/Download/XCrySDen-1.5.21-src-all
> PATH: /home/jy/.wine/drive_c/windows
> PATH: /home/jy/Download/XCrySDen-1.5.21-src
> PATH: /home/jy/bin/vtstscripts
> PATH: /opt/mpich2-1.2/bin
> PATH: /opt/intel/fc/10.1.018/bin
> PATH: /opt/intel/cc/10.1.018/bin
> PATH: /usr/lib/qt-3.3/bin
> PATH: /usr/kerberos/bin
> PATH: /usr/lib/ccache
> PATH: /usr/local/bin
> PATH: /usr/bin
> PATH: /bin
> PATH: /usr/local/sbin
> PATH: /usr/sbin
> PATH: /sbin
> PATH: /home/jy/Download/XCrySDen-1.5.21-src/scripts
> PATH: /home/jy/Download/XCrySDen-1.5.21-src/util
> PATH: /home/jy/Download/XCrySDen-1.5.21-src-all/scripts
> PATH: /home/jy/Download/XCrySDen-1.5.21-src-all/util
> PATH: /home/jy/Download/XCrySDen-1.5.21-src-all/scripts
> PATH: /home/jy/Download/XCrySDen-1.5.21-src-all/util
> PATH: /home/jy/bin
> PATH: /home/jy/Download/XCrySDen-1.5.21-src-all/scripts
> PATH: /home/jy/Download/XCrySDen-1.5.21-src-all/util
> PATH: /home/jy/Download/XCrySDen-1.5.21-src-all/scripts
> PATH: /home/jy/Download/XCrySDen-1.5.21-src-all/util
>
>
> ## ----------- ##
> ## Core tests. ##
> ## ----------- ##
>
> configure:3424: checking for a BSD-compatible install
> configure:3492: result: /usr/bin/install -c
> configure:3503: checking whether build environment is sane
> configure:3546: result: yes
> configure:3571: checking for a thread-safe mkdir -p
> configure:3610: result: /bin/mkdir -p
> configure:3623: checking for gawk
> configure:3639: found /usr/bin/gawk
> configure:3650: result: gawk
> configure:3661: checking whether make sets $(MAKE)
> configure:3683: result: yes
> configure:3853: checking how to create a ustar tar archive
> configure:3866: tar --version
> tar (GNU tar) 1.22
> Copyright (C) 2009 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later
> <http://gnu.org/licenses/gpl.html
>
> >.
>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.
>
> .........
>
>
> configure: exit 0
>
>
> ***************************************************************************
> ***********************************
>