[mvapich-discuss] Re: Architecture compatibility or maybe something else

[Matthew Koop]

Yes, this is needed. If you use the make.mvapich.gen2 script to build and
then use mpicc this should be included automatically though.

Matt

On Sat, 19 Apr 2008, Laurence Marks wrote:

> Does mvapich need -lpthread ? This appears to be defined in
> mpid/ch_gen2/Makefile:BASE_LIB_LIST
>
> On Fri, Apr 18, 2008 at 12:31 PM, Laurence Marks
> <L-marks at northwestern.edu> wrote:
> > I have an issue running mpi tasks on a new cluster which may be any of
> >  (or a combination of)
> >  a) The intel scalapack libraries
> >  b) The version of OFED and infiniband cards
> >  c) The compiler (ifort) and the architecture
> >  d) Something I've not thought of.
> >
> >  It's not the code, that is stable and runs fine on other systems.
> >
> >  Running mvapich, on a dual-quadcore Intel(R) Xeon(R) CPU E5410
> >  everything works if I run only 1 mpi task per quadcore.
> >  If I do 2 or more I get a SIGSEV within the scalapack call PDSYEVX
> >  which looks like it is associated with threading:
> >  libpthread.so.0 00000030D9C0DD40
> >  libpthread.so.0 00000030D9C0DC1D
> >  libiomp5.so 00002AAAAB4C1511
> >
> >  Running mvapich2 and/or intelmpi I get a different error,
> >  Fatal error in MPI_Comm_size: Invalid communicator, error stack:
> >  MPI_Comm_size(110): MPI_Comm_size(comm=0x5b, size=0xa4ee68) failed
> >  MPI_Comm_size(69).: Invalid communicator
> >
> >  which I can trace to the scalapack call CALL SL_INIT(ICTXTALL, 1, NPE)
> >
> >  The code ran fine when it was benchmarked a few months ago, and so far
> >  has been tested (by Intel) on a dual duo-core without problems; the
> >  engineer is going to use a dual quadcore.
> >
> >  I would appreciate any suggestions as to where to look to try and
> >  understand what is going on.
> >
> >  --
> >  Laurence Marks
> >  Department of Materials Science and Engineering
> >  MSE Rm 2036 Cook Hall
> >  2220 N Campus Drive
> >  Northwestern University
> >  Evanston, IL 60208, USA
> >  Tel: (847) 491-3996 Fax: (847) 491-7820
> >  email: L-marks at northwestern dot edu
> >  Web: www.numis.northwestern.edu
> >  Commission on Electron Diffraction of IUCR
> >  www.numis.northwestern.edu/IUCR_CED
> >
>
>
>
> --
> Laurence Marks
> Department of Materials Science and Engineering
> MSE Rm 2036 Cook Hall
> 2220 N Campus Drive
> Northwestern University
> Evanston, IL 60208, USA
> Tel: (847) 491-3996 Fax: (847) 491-7820
> email: L-marks at northwestern dot edu
> Web: www.numis.northwestern.edu
> Commission on Electron Diffraction of IUCR
> www.numis.northwestern.edu/IUCR_CED
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