[mpich-discuss] Intel Xeon Phi support?

[Balaji, Pavan]

Hello,

You need to build MPICH for the MIC as well, not just the application.

So CFLAGS need to be set to -mmic for MPICH’s configure too, and that copy needs to be installed on the MIC.

Here’s a rough list of steps:

1. Configure MPICH with -mmic.  Build.  Install.

2. Copy the install directory to the MIC.

3. Configure MPICH without -mmic (for the host).  Build.  Install.

4. Make sure the install path for MPICH on both the host and the MIC is the same.

  — Pavan

On May 9, 2014, at 2:57 PM, Nikoloutsakos Nikolaos <nikoloutsa at ceid.upatras.gr> wrote:

> Yes i am familiar with that, have you ever tried it?
> I get the following error:
> $mpicc -mmic -show mpi_hello_world.c
> $icc -mmic mpi_hello_world.c -o mpi_hello_world -I/opt/mpich_icc/include -L/opt/mpich_icc/lib -Wl,-rpath -Wl,/opt/mpich_icc/lib -lmpich -lopa -lmpl -lrt -lpthread
> 
> x86_64-k1om-linux-ld: skipping incompatible /opt/mpich_icc/lib/libmpich.so when searching for -lmpich
> x86_64-k1om-linux-ld: skipping incompatible /opt/mpich_icc/lib/libmpich.a when searching for -lmpich
> x86_64-k1om-linux-ld: cannot find -lmpich
> x86_64-k1om-linux-ld: skipping incompatible /opt/mpich_icc/lib/libopa.so when searching for -lopa
> x86_64-k1om-linux-ld: skipping incompatible /opt/mpich_icc/lib/libopa.a when searching for -lopa
> x86_64-k1om-linux-ld: cannot find -lopa
> x86_64-k1om-linux-ld: skipping incompatible /opt/mpich_icc/lib/libmpl.so when searching for -lmpl
> x86_64-k1om-linux-ld: skipping incompatible /opt/mpich_icc/lib/libmpl.a when searching for -lmpl
> x86_64-k1om-linux-ld: cannot find -lmp
> 
> Without the -mmic argument i dont have any linking problems.
> 
> Thanks for the feedback.
> 
> Στις 2014-05-09 16:03, Harms, Kevin N. έγραψε:
>> add -mmic to the CFLAGS/LDFLAGS if you want to run in native mode.
>> kevin
>>> Hello,
>>> I just installed MPICH 3.1 "several improvements to Intel Xeon Phi
>>> (contributed by Intel and NEC)".
>>> I used icc to compile mpich.
>>> I can't figure out how to create an executable for xeon phi.
>>> Any hints from anyone using mpich with phi?
>>> Thank you all.
>>> _______________________________________________
>>> discuss mailing list     discuss at mpich.org
>>> To manage subscription options or unsubscribe:
>>> https://lists.mpich.org/mailman/listinfo/discuss
>> _______________________________________________
>> discuss mailing list     discuss at mpich.org
>> To manage subscription options or unsubscribe:
>> https://lists.mpich.org/mailman/listinfo/discuss
> _______________________________________________
> discuss mailing list     discuss at mpich.org
> To manage subscription options or unsubscribe:
> https://lists.mpich.org/mailman/listinfo/discuss