openmpi 4.1.8 compile error with intel compilers (2025.0) #13102
Description
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Background information
What version of Open MPI are you using? (e.g., v4.1.6, v5.0.1, git branch name and hash, etc.)
v4.1.8
Describe how Open MPI was installed (e.g., from a source/distribution tarball, from a git clone, from an operating system distribution package, etc.)
tar file
If you are building/installing from a git clone, please copy-n-paste the output from git submodule status.
no
Please describe the system on which you are running
- Operating system/version:
Rhel 8.10 - Computer hardware:
- Network type:
Details of the problem
Using Intel oneapi 2025.0 compilers the build fails with this.
base/sshmem_base_open.c:34:7: error: incompatible integer to pointer conversion initializing 'void *' with an expression of type 'unsigned long' [-Wint-conversion]
34 | void *mca_sshmem_base_start_address = UINTPTR_MAX;
| ^ ~~~~~~~~~~~
If I do --disable-oshmem it will build but previously I didn't have to do that when building v4.1.7 using the same compilers.
Please describe, in detail, the problem that you are having, including the behavior you expect to see, the actual behavior that you are seeing, steps to reproduce the problem, etc. It is most helpful if you can attach a small program that a developer can use to reproduce your problem.
Note: If you include verbatim output (or a code block), please use a GitHub Markdown code block like below:
shell$ mpirun -n 2 ./hello_world