Re: OpenMPI / MPI transition

2023-11-24 Thread Drew Parsons
On 2023-11-24 15:00, Alastair McKinstry wrote: My understanding is that MPICH has been typically the reference implementation, higher quality but less performant, particularly with the range of fabrics. Certainly I've seen mostly OpenMPI but not MPICH on various HPC machines. People would use

Re: OpenMPI / MPI transition

2023-11-24 Thread Alastair McKinstry
My understanding is that MPICH has been typically the reference implementation, higher quality but less performant, particularly with the range of fabrics. Certainly I've seen mostly OpenMPI but not MPICH on various HPC machines. People would use either OpenMPI or a vendors MPI (which may be

Re: OpenMPI / MPI transition

2023-11-24 Thread Emilio Pozuelo Monfort
On 23/11/2023 14:14, Alastair McKinstry wrote: On 23/11/2023 12:44, Drew Parsons wrote: On 2023-11-23 12:13, Emilio Pozuelo Monfort wrote: Hi, On 23/11/2023 09:36, Alastair McKinstry wrote: Hi, OpenMPI has a new upstream release 5.0.0. It is in experimental now; the SOVERSION for

Re: OpenMPI / MPI transition

2023-11-23 Thread Alastair McKinstry
On 23/11/2023 12:44, Drew Parsons wrote: On 2023-11-23 12:13, Emilio Pozuelo Monfort wrote: Hi, On 23/11/2023 09:36, Alastair McKinstry wrote: Hi, OpenMPI has a new upstream release 5.0.0. It is in experimental now; the SOVERSION for libraries remains 40.X (minor version increment),

Re: OpenMPI / MPI transition

2023-11-23 Thread Drew Parsons
On 2023-11-23 12:13, Emilio Pozuelo Monfort wrote: Hi, On 23/11/2023 09:36, Alastair McKinstry wrote: Hi, OpenMPI has a new upstream release 5.0.0. It is in experimental now; the SOVERSION for libraries remains 40.X (minor version increment), there is  an SOVERSION increment for private

Re: OpenMPI / MPI transition

2023-11-23 Thread Emilio Pozuelo Monfort
Hi, On 23/11/2023 09:36, Alastair McKinstry wrote: Hi, OpenMPI has a new upstream release 5.0.0. It is in experimental now; the SOVERSION for libraries remains 40.X (minor version increment), there is  an SOVERSION increment for private libraries only so in theory this is not an ABI