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Subject: Re: [OMPI devel] CUDA support not working?
From: George Bosilca (bosilca_at_[hidden])
Date: 2013-11-24 10:18:07


I disable VT using “—enable-contrib-no-build=vt”, and it works. You should try with this instead of “—disable-ft”.

  George.

On Nov 24, 2013, at 16:11 , Jörg Bornschein <jb_at_[hidden]> wrote:

> On 23.11.2013, at 22:56, Dmitry N. Mikushin <maemarcus_at_[hidden]> wrote:
>
>> VT is getting out of sync with CUDA from time to time, this already
>> happened before.
>
> Yes, thats what I thought and thats why I didn’t mention it as my main issue.
>
>
>
> I’m rather stuck because cuda support and ob1 don’t seem to fit together — at least on my systems.
>
>
> j
>
>
>
>> - D.
>>
>>
>> 2013/11/24 Jörg Bornschein <jb_at_[hidden]>:
>>> 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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