Hi everybody,

I have installed Gromacs 3.3.2 on Mac OSX Leopard, but now it it working 3 times slower than it did before, and in addition, it crashes on simulations that take more than 40 minutes.

For example, I've ran a few benchmark runs and here are the results for 4 processors on Mac-Pro:
d.villin:       
Leopard performance: 13714 ps/day
old OS performance:    41143 ps/day.
gmx-benchmark :          48000 ps/day.

d.poly-ch2
Leopard performance:  8640 ps/day
old OS performance:    18000 ps/day
gmx-benchmark:            20571 ps/day

At first I thought that open-mpi was responsible for the slow speed, but even when running on 1 CPU with mdrun, the performance of d.villin were 3592 ps/day on Leopard, in comparison to 18106 ps/day on the old OS.

As for crashes: I ran a position restraints of 0.5ns which usually takes 2 hours on 2 CPUs. The prediction of the finish time was 6 hours, but it crashed after 40 minutes with the following errors:
---
step 23070, will finish at Tue Nov 20 23:18:28 2007
[tmdec2:69924] *** Process received signal ***
[tmdec2:69924] Signal: Segmentation fault (11)
[tmdec2:69924] Signal code: Address not mapped (1)
[tmdec2:69924] Failing at address: 0x49c78d52
[tmdec2:69925] *** Process received signal ***
[tmdec2:69925] Signal: Segmentation fault (11)
[tmdec2:69925] Signal code: Address not mapped (1)
[tmdec2:69925] Failing at address: 0x49aeac55
[tmdec2:69926] *** Process received signal ***
[tmdec2:69926] Signal: Segmentation fault (11)
[tmdec2:69926] Signal code: Address not mapped (1)
[tmdec2:69926] Failing at address: 0x48c74d8c
[tmdec2:69927] *** Process received signal ***
[tmdec2:69927] Signal: Segmentation fault (11)
[tmdec2:69927] Signal code: Address not mapped (1)
[tmdec2:69927] Failing at address: 0x49e5e700
[ 1] [0xbfffd678, 0x49aeac55] (-P-)
[ 2] (ompi_ddt_copy_content_same_ddt + 0x7d) [0xbfffd6e8, 0x006f562d]
[ 3] (ompi_ddt_sndrcv + 0x3bf) [0xbfffd748, 0x006fbebf]
[ 4] [ 1] [0xbfffd678, 0x48c74d8c] (-P-)
[ 2] [ 1] [0xbfffd678, 0x49c78d52] (-P-)
[ 2] (mca_coll_basic_alltoallv_intra + 0x28b) [0xbfffd7c8, 0x00a3a65b]
[ 5] (MPI_Alltoallv + 0x20a) [0xbfffd858, 0x0070056a]
[ 6] (ompi_ddt_copy_content_same_ddt + 0x7d) [0xbfffd6e8, 0x006f562d]
[ 3] (ompi_ddt_sndrcv + 0x3bf) [0xbfffd748, 0x006fbebf]
[ 4] [ 1] [0xbfffd678, 0x49e5e700] (-P-)
[ 2] (ompi_ddt_copy_content_same_ddt + 0x7d) [0xbfffd6e8, 0x006f562d]
[ 3] (ompi_ddt_sndrcv + 0x3bf) [0xbfffd748, 0x006fbebf]
[ 4] (ompi_ddt_copy_content_same_ddt + 0x7d) [0xbfffd6e8, 0x006f562d]
[ 3] (ompi_ddt_sndrcv + 0x3bf) [0xbfffd748, 0x006fbebf]
[ 4] (mca_coll_basic_alltoallv_intra + 0x28b) [0xbfffd7c8, 0x00a3a65b]
[ 5] (MPI_Alltoallv + 0x20a) [0xbfffd858, 0x0070056a]
[ 6] (mca_coll_basic_alltoallv_intra + 0x28b) [0xbfffd7c8, 0x00a3a65b]
[ 5] (MPI_Alltoallv + 0x20a) [0xbfffd858, 0x0070056a]
[ 6] (pmeredist + 0x4e2) [0xbfffd8d8, 0x0004836e]
[ 7] (do_pme + 0x494) [0xbfffda38, 0x0004d62b]
[ 8] (force + 0x7d9) (mca_coll_basic_alltoallv_intra + 0x28b) [0xbfffd7c8, 0x00a3a65b]
[ 5] (MPI_Alltoallv + 0x20a) [0xbfffd858, 0x0070056a]
[ 6] [0xbfffdc88, 0x0002ee56]
[ 9] (do_force + 0x87a) [0xbfffdd78, 0x0005d652]
[10] (pmeredist + 0x4e2) [0xbfffd8d8, 0x0004836e]
[ 7] (do_pme + 0x494) [0xbfffda38, 0x0004d62b]
[ 8] (pmeredist + 0x4e2) [0xbfffd8d8, 0x0004836e]
[ 7] (do_md + 0x164f) [0xbfffe988, 0x0001666e]
[11] (mdrunner + 0xb04) [0xbfffeb08, 0x00014abe]
[12] (force + 0x7d9) [0xbfffdc88, 0x0002ee56]
[ 9] (do_force + 0x87a) [0xbfffdd78, 0x0005d652]
[10] (pmeredist + 0x4e2) [0xbfffd8d8, 0x0004836e]
[ 7] (do_pme + 0x494) [0xbfffda38, 0x0004d62b]
[ 8] (force + 0x7d9) (do_pme + 0x494) [0xbfffda38, 0x0004d62b]
[ 8] (force + 0x7d9) [0xbfffdc88, 0x0002ee56]
[ 9] (do_force + 0x87a) (main + 0x463) [0xbfffeb98, 0x00018c69]
[13] (start + 0x36) [0xbfffebbc, 0x0000216e]
[14] [0x00000000, 0x0000000e] (FP-)
[tmdec2:69925] *** End of error message ***
(do_md + 0x164f) [0xbfffe988, 0x0001666e]
[11] (mdrunner + 0xb04) [0xbfffeb08, 0x00014abe]
[12] [0xbfffdc88, 0x0002ee56]
[ 9] (do_force + 0x87a) [0xbfffdd78, 0x0005d652]
[10] (do_md + 0x164f) [0xbfffe988, 0x0001666e]
[11] [0xbfffdd78, 0x0005d652]
[10] (do_md + 0x164f) [0xbfffe988, 0x0001666e]
[11] (mdrunner + 0xb04) [0xbfffeb08, 0x00014abe]
[12] (main + 0x463) [0xbfffeb98, 0x00018c69]
[13] (start + 0x36) [0xbfffebbc, 0x0000216e]
[14] [0x00000000, 0x0000000e] (FP-)
[tmdec2:69926] *** End of error message ***
(mdrunner + 0xb04) [0xbfffeb08, 0x00014abe]
[12] (main + 0x463) [0xbfffeb98, 0x00018c69]
[13] (main + 0x463) [0xbfffeb98, 0x00018c69]
[13] (start + 0x36) [0xbfffebbc, 0x0000216e]
[14] [0x00000000, 0x0000000e] (FP-)
[tmdec2:69924] *** End of error message ***
(start + 0x36) [0xbfffebbc, 0x0000216e]
[14] [0x00000000, 0x0000000e] (FP-)
[tmdec2:69927] *** End of error message ***
[tmdec2.ls.huji.ac.il:69921] [0,0,0] ORTE_ERROR_LOG: Timeout in file / SourceCache/openmpi/openmpi-5/openmpi/orte/mca/pls/base/ pls_base_orted_cmds.c at line 275 [tmdec2.ls.huji.ac.il:69921] [0,0,0] ORTE_ERROR_LOG: Timeout in file / SourceCache/openmpi/openmpi-5/openmpi/orte/mca/pls/rsh/ pls_rsh_module.c at line 1164 [tmdec2.ls.huji.ac.il:69921] [0,0,0] ORTE_ERROR_LOG: Timeout in file / SourceCache/openmpi/openmpi-5/openmpi/orte/mca/errmgr/hnp/errmgr_hnp.c at line 90 mpirun noticed that job rank 1 with PID 69925 on node tmdec2.ls.huji.ac.il exited on signal 11 (Segmentation fault). [tmdec2.ls.huji.ac.il:69921] [0,0,0] ORTE_ERROR_LOG: Timeout in file / SourceCache/openmpi/openmpi-5/openmpi/orte/mca/pls/base/ pls_base_orted_cmds.c at line 188 [tmdec2.ls.huji.ac.il:69921] [0,0,0] ORTE_ERROR_LOG: Timeout in file / SourceCache/openmpi/openmpi-5/openmpi/orte/mca/pls/rsh/ pls_rsh_module.c at line 1196
--------------------------------------------------------------------------
mpirun was unable to cleanly terminate the daemons for this job. Returned value Timeout instead of ORTE_SUCCESS.

--------------------------------------------------------------------------
1 additional process aborted (not shown)
---

It looks like GROMACS has troubles with open-mpi.
Before the installation of Leopard I was using lam-mpi, I couldn't use it now because the compilation did not work unless I installed open- mpi and used the ia32 disable flags in the configure script. (-- disable-ia32-3dnow --disable-ia32-3dnow, see previous post re that error).

When I tried to compile GROMACS with lam-mpi installed, this is the 'make' error I got:
---
mpicc -I/sw/include -framework Accelerate -o grompp topio.o toppush.o topcat.o topshake.o convparm.o tomorse.o sorting.o splitter.o vsite_parm.o readir.o add_par.o topexcl.o toputil.o topdirs.o grompp.o compute_io.o -L/sw/lib ../mdlib/.libs/libmd_mpi.a -L/usr/X11/lib ../ gmxlib/.libs/libgmx_mpi.a /usr/local/lib/libfftw3f.a -lm /sw/lib/ libXm.dylib /usr/X11/lib/libXt.6.0.0.dylib /usr/X11/lib/libSM. 6.0.0.dylib /usr/X11/lib/libICE.6.3.0.dylib /usr/X11/lib/libXp. 6.2.0.dylib /usr/X11/lib/libXext.6.4.0.dylib /usr/X11/lib/ libX11.6.2.0.dylib /usr/X11/lib/libXau.6.0.0.dylib /usr/X11/lib/ libXdmcp.6.0.0.dylib
Undefined symbols:
  "_lam_mpi_byte", referenced from:
      _lam_mpi_byte$non_lazy_ptr in libgmx_mpi.a(network.o)
  "_lam_mpi_float", referenced from:
      _lam_mpi_float$non_lazy_ptr in libgmx_mpi.a(network.o)
  "_lam_mpi_comm_world", referenced from:
      _lam_mpi_comm_world$non_lazy_ptr in libgmx_mpi.a(network.o)
ld: symbol(s) not found
collect2: ld returned 1 exit status
make[3]: *** [grompp] Error 1
make[2]: *** [all-recursive] Error 1
make[1]: *** [all] Error 2
make: *** [all-recursive] Error 1
---

As you can realize - I can't do any simulations for now. any ideas? Is this a GROMACS bug? if so, any chance it's fixed soon?

Thanks in advance,
Hadas Leonov.

[EMAIL PROTECTED]
Department of Biological Chemistry
Alexander Silberman institute of Life Sciences
The Hebrew University,
Jerusalem, Israel

_______________________________________________
gmx-users mailing list    [email protected]
http://www.gromacs.org/mailman/listinfo/gmx-users
Please search the archive at http://www.gromacs.org/search before posting!
Please don't post (un)subscribe requests to the list. Use the www interface or send it to [EMAIL PROTECTED]
Can't post? Read http://www.gromacs.org/mailing_lists/users.php

Reply via email to