topic Thank you, Gergana. in Intel® MPI Library

mpd failed to boot

Chao_M_ — Wed, 04 Feb 2015 06:44:47 GMT

Hi all,

When I try to run mpdboot on single node (RHEL7), but I got error message:

[root@hpc-test intel64]# mpd &
[1] 3527
[root@hpc-test intel64]# mpd_uncaught_except_tb handling:
<type 'exceptions.IndexError'>: list index out of range
/opt/intel/impi/5.0.2.044/intel64/bin/mpd 264 pin_Uni_num
if list.index(list) == i:
/opt/intel/impi/5.0.2.044/intel64/bin/mpd 1449 pin_Cpuinfo
info['cache1'] = pin_Uni_num(info['cache1_id'], info['lcpu'])
/opt/intel/impi/5.0.2.044/intel64/bin/mpd 1658 run
self.CpuInfo = pin_Cpuinfo(self.PinCase,self.Arch)
/opt/intel/impi/5.0.2.044/intel64/bin/mpd 3676 <module>
mpd.run()

I use I_MPI_CPUINFO=proc to work around, but I don't know what cause it, and how to fix it correctly?

Thank you for your help.

Thanks,

Chao

Hi Chao,

Gergana_S_Intel — Wed, 11 Feb 2015 00:01:46 GMT

Hi Chao,

Thanks for getting in touch.

The mpd scripts (mpd, mpdboot, mpdallexit, etc.) have been deprecated starting with Intel MPI 5.0 and are no longer shipped with the library. I would recommend switching over to using the Hydra process manager which has been our default for several releases now.

To use Hydra, just replace your existing scripts with mpirun. For example, if you had previously done this:

$ mpdboot
$ mpiexec -n 4 ./a.out
$ mpdallexit

You can now simply say:

$ mpirun -n 4 ./a.out

Let me know how it goes or if you have questions.

Regards,
~Gergana

Thank you, Gergana.

Chao_M_ — Wed, 11 Feb 2015 02:31:46 GMT

Thank you, Gergana.

So I can use mpiexec.hydra or simply use mpirun instead mpdboot etc.

Thanks,

Chao

Hi Chao,

Gergana_S_Intel — Wed, 11 Feb 2015 15:22:11 GMT

Hi Chao,

Yes, indeed. The mpirun script uses mpiexec.hydra by default so either is fine.

Let us know if you hit any problem.

All the best,
~Gergana