[mvapich-discuss] --enable-cuda=basic when building with PGI compiler set

[sreeram potluri]

Maxim,

Yes, you will still be able to use device_ptr in MPI_Send and other MPI
communication calls. It is only some datatype related optimizations that
are disabled with this flag and they should not affect the way you can use
MPI calls with device pointers.

Sreeram Potluri

On Fri, Jun 7, 2013 at 6:25 AM, Maxim Milakov <mmilakov at nvidia.com> wrote:

>  Hi,
>
> I am building MVAPICH2 1.9 using PGI 13.5 accelerator:
>
> CPPFLAGS="-D x86_64 -D__align__\(n\)=__attribute__\(\(aligned\(n\)\)\)
> -D__location__\(a\)=__annotate__\(a\) -DCUDARTAPI=" F77=pgf77 FC=pgf90
> CC=pgcc CXX=pgcpp ./configure
> --prefix=/home/max/software/pgi_specific/mvapich2 --enable-f77 --enable-fc
> --enable-cxx --enable-cuda=basic --with-cuda=$CUDA_PATH --disable-mcast
> --enable-shared --disable-static
>
> I am specifying --enable-cuda=basic as configure script fails otherwise
> (and "basic" was suggested here, in the user group some time ago).
>
> I am wondering in what degree I am limiting myself with this
> "--enable-cuda=basic"... Will I be able to pass device pointer to mpi_send?
>
> Thanks!
>
> --
>
> Best regards
> Maxim Milakov
>
> HPC Developer Technology Engineer
> NVIDIA Russia
> 12 Dvintsev St., bld. C
> 127018 Moscow, Russia+7 495 9810300, ext.10806
>
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