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Subject: Re: [OMPI users] 1.3 and --preload-files and --preload-binary
From: Josh Hursey (jjhursey_at_[hidden])
Date: 2009-01-22 10:49:31


The warning is to be expected if the file already exists on the remote
side. Open MPI has a policy not to replace the file if it already
exists.

The segv is concerning. :/

I will take a look and see if I can diagnose what is going on here.
Probably in the next day or two.

Thanks for the bug report,
Josh

On Jan 22, 2009, at 10:11 AM, Geoffroy Pignot wrote:

> Hello,
>
> As you can notice , I am trying the work done on this new release.
> preload-files and preload-binary options are very interesting to me
> because I work on a cluster without any shared space between nodes.
> I tried those basically , but no success . You will find below the
> error messages.
> If I did things wrong, would it be possible to get simple examples
> showing how these options work.
>
> Thanks
>
> Geoffroy
>
> /tmp/openmpi-1.3/bin/mpirun --preload-files hello.c --hostfile /tmp/
> hostlist -np 2 hostname
> --------------------------------------------------------------------------
> WARNING: Could not preload specified file: File already exists.
>
> Fileset: /tmp/hello.c
> Host: compil03
>
> Will continue attempting to launch the process.
>
> --------------------------------------------------------------------------
> [compil03:26657] filem:rsh: get(): Failed to preare the request
> structure (-1)
> --------------------------------------------------------------------------
> WARNING: Could not preload the requested files and directories.
>
> Fileset:
> Fileset: hello.c
>
> Will continue attempting to launch the process.
>
> --------------------------------------------------------------------------
> [compil03:26657] [[13938,0],0] ORTE_ERROR_LOG: Error in file base/
> odls_base_state.c at line 127
> [compil03:26657] [[13938,0],0] ORTE_ERROR_LOG: Error in file base/
> odls_base_default_fns.c at line 831
> [compil03:26657] *** Process received signal ***
> [compil03:26657] Signal: Segmentation fault (11)
> [compil03:26657] Signal code: Address not mapped (1)
> [compil03:26657] Failing at address: 0x395eb15000
> [compil03:26657] [ 0] /lib64/tls/libpthread.so.0 [0x395f80c420]
> [compil03:26657] [ 1] /lib64/tls/libc.so.6(memcpy+0x3f) [0x395ed718df]
> [compil03:26657] [ 2] /tmp/openmpi-1.3/lib64/libopen-pal.so.0
> [0x2a956b0a10]
> [compil03:26657] [ 3] /tmp/openmpi-1.3/lib64/libopen-rte.so.
> 0(orte_odls_base_default_launch_local+0x55c) [0x2a955809cc]
> [compil03:26657] [ 4] /tmp/openmpi-1.3/lib64/openmpi/
> mca_odls_default.so [0x2a963655f2]
> [compil03:26657] [ 5] /tmp/openmpi-1.3/lib64/libopen-rte.so.
> 0(orte_daemon_cmd_processor+0x57d) [0x2a9557812d]
> [compil03:26657] [ 6] /tmp/openmpi-1.3/lib64/libopen-pal.so.0
> [0x2a956b9828]
> [compil03:26657] [ 7] /tmp/openmpi-1.3/lib64/libopen-pal.so.
> 0(opal_progress+0xb0) [0x2a956ae820]
> [compil03:26657] [ 8] /tmp/openmpi-1.3/lib64/libopen-rte.so.
> 0(orte_plm_base_launch_apps+0x1ed) [0x2a95584e7d]
> [compil03:26657] [ 9] /tmp/openmpi-1.3/lib64/openmpi/mca_plm_rsh.so
> [0x2a95c3ed98]
> [compil03:26657] [10] /tmp/openmpi-1.3/bin/mpirun [0x403330]
> [compil03:26657] [11] /tmp/openmpi-1.3/bin/mpirun [0x402ad3]
> [compil03:26657] [12] /lib64/tls/libc.so.6(__libc_start_main+0xdb)
> [0x395ed1c4bb]
> [compil03:26657] [13] /tmp/openmpi-1.3/bin/mpirun [0x402a2a]
> [compil03:26657] *** End of error message ***
> Segmentation fault
>
> And it's not better with --preload-binary . a.out_32
>
> compil03% /tmp/openmpi-1.3/bin/mpirun -s --hostfile /tmp/hostlist -
> wdir /tmp -np 2 a.out_32
> --------------------------------------------------------------------------
> mpirun was unable to launch the specified application as it could
> not find an executable:
>
> Executable: a.out_32
> Node: compil02
>
> while attempting to start process rank 1.
>
>
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