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Subject: Re: [OMPI devel] CUDA support not working?
From: Jörg Bornschein (jb_at_[hidden])
Date: 2013-11-23 21:50:34


On 23.11.2013, at 21:42, Jörg Bornschein <jb_at_[hidden]> wrote:

Sorry,

> I’m typically compiling with
>
> ./configure —with-cuda

I’m actually compiling with

  ./configure —with-cuda —disable-vt

because otherwise I get a compile time error:

make[5]: Entering directory `/u/bornj/software-old/src/openmpi-1.7.3/ompi/contrib/vt/vt/vtlib'
  CC libvt_la-vt_cudart.lo
  CC libvt_mpi_la-vt_pform_linux.lo
  CC libvt_mpi_la-vt_thrd.lo
  CC libvt_mpi_la-vt_trc.lo
  CC libvt_mpi_la-vt_user_comment.lo
  CC libvt_mpi_la-vt_user_control.lo
  CC libvt_mpi_la-vt_user_count.lo
  CC libvt_mpi_la-vt_user_marker.lo
vt_cudart.c: In function 'cudaLaunch':
vt_cudart.c:2725:15: error: 'vt_cupti_events_enabled' undeclared (first use in this function)
vt_cudart.c:2725:15: note: each undeclared identifier is reported only once for each function it appears in

    j

> but I tried combining it with various other options. OMPI builds fine, but when I try to run programs compiled against it I always get:
>
> /a.out: symbol lookup error: /usr/local/lib/openmpi/mca_pml_ob1.so: undefined symbol: progress_one_cuda_htod_event
>
> That error even seems to make sense, because the code in ompi/mca/pml/ob1/ refers to common_cuda.[ch], but it does not
> seem to link against it's dynamic binary.
>
> Am I missing something?
>
>
> Thanks!
>
>
> jb
>
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