compile v4.1.7 with CUDA support broken

[davidhoover]

Thank you for taking the time to submit an issue!

Background information

What version of Open MPI are you using? (e.g., v4.1.6, v5.0.1, git branch name and hash, etc.)

v4.1.7

Describe how Open MPI was installed (e.g., from a source/distribution tarball, from a git clone, from an operating system distribution package, etc.)

From tarball openmpi-4.1.7.tar.bz2

If you are building/installing from a git clone, please copy-n-paste the output from git submodule status.

Please describe the system on which you are running

• Operating system/version: rocky8
• Computer hardware: intel x2695
• Network type: infiniband

---

Details of the problem

I am attempting to compile openmpi with CUDA v11.8 support, like this:

./configure'   '--prefix=/lscratch/43997378/openmpi/4.1.7/CUDA-11.8/pmix-3.2.3/ucx-1.17.0/gcc-8.5.0' '--enable-shared' '--enable-static' '--without-verbs' '--without-mxm' '--enable-orterun-prefix-by-default' '--enable-mpi-cxx' '--with-libevent=/usr/local/libevent/libevent-2.1.12/gcc-11.3.0' '--with-ucx=/usr/local/ucx/1.17.0-nocuda-mofed4.9-6/gcc-8.5.0' '--with-pmix=/usr/local/apps/PMIx/pmix-3.2.3' '--with-slurm' '--with-cuda=/usr/local/CUDA/11.8.0' 'CC=/usr/local/GCC/8.5.0/bin/gcc' 'CXX=/usr/local/GCC/8.5.0/bin/g++' 'CXXFLAGS=-fabi-version=13 -fabi-compat-version=2 -fpermissive' 'FC=/usr/local/GCC/8.5.0/bin/gfortran' 'CPPFLAGS=    -I/usr/local/libevent/libevent-2.1.12/gcc-11.3.0/include' --cache-file=/dev/null --srcdir=. --disable-option-checking

This results in the following error:

make[2]: Entering directory '/usr/local/src/openmpi/openmpi-4.1.7/opal/mca/common/cuda'
  CC       common_cuda.lo
  LN_S     libmca_common_cuda.la
common_cuda.c: In function ‘mca_common_cuda_get_primary_context’:
common_cuda.c:1825:21: error: ‘cudaFunctionTable_t’ {aka ‘struct cudaFunctionTable’} has no member named ‘cuDevicePrimaryCtxGetState’
     result =  cuFunc.cuDevicePrimaryCtxGetState(dev_id, &flags, &active);
                     ^
common_cuda.c:1831:24: error: ‘cudaFunctionTable_t’ {aka ‘struct cudaFunctionTable’} has no member named ‘cuDevicePrimaryCtxRetain’
         result = cuFunc.cuDevicePrimaryCtxRetain(pctx, dev_id);
                        ^
make[2]: *** [Makefile:1948: common_cuda.lo] Error 1
make[2]: Leaving directory '/usr/local/src/openmpi/openmpi-4.1.7/opal/mca/common/cuda'
make[1]: *** [Makefile:2387: all-recursive] Error 1
make[1]: Leaving directory '/usr/local/src/openmpi/openmpi-4.1.7/opal'
make: *** [Makefile:1905: all-recursive] Error 1

Please note that this does not happen with v4.1.6. Something has changed with openmpi-4.1.{6,7}/opal/mca/common/cuda/common_cuda.c.

Has anyone else seen this?

Thanks, David

[ohlmann]

I have seen the same issue. I guess that this was introduced in a697a27. A possible fix would probably be to fence lines 1821 to 1835 with #if OPAL_CUDA_VMM_SUPPORT.

[bosilca]

You are correct. The following patch should fix the issue:

diff --git a/opal/mca/common/cuda/common_cuda.c b/opal/mca/common/cuda/common_cuda.c
index b8ce5a7bea..ab5177fe7f 100644
--- a/opal/mca/common/cuda/common_cuda.c
+++ b/opal/mca/common/cuda/common_cuda.c
@@ -1818,6 +1818,7 @@ static int mca_common_cuda_check_mpool(CUdeviceptr dbuf, CUmemorytype *mem_type,
 
 static int mca_common_cuda_get_primary_context(CUdevice dev_id, CUcontext *pctx)
 {
+#if OPAL_CUDA_VMM_SUPPORT
     CUresult result;
     unsigned int flags;
     int active;
@@ -1831,7 +1832,7 @@ static int mca_common_cuda_get_primary_context(CUdevice dev_id, CUcontext *pctx)
         result = cuFunc.cuDevicePrimaryCtxRetain(pctx, dev_id);
         return OPAL_SUCCESS;
     }
-
+#endif  /* OPAL_CUDA_VMM_SUPPORT */
     return OPAL_ERROR;
 }
 

[davidhoover]

Beauty, that worked, cheers!

[jsquyres]

@bosilca I assume you'll submit a PR to fix this? 😄