Which MPI distribution is no longer supported on OCI?

Which MPI distribution is no longer supported on OCI?

• A. OpenMPI
• B. Platform MPI
• C. MPICH
• D. MVAPICH

Answer: (B)

Platform MPI is the correct answer because it is a proprietary MPI implementation that was once associated with a specific company's offerings, which has since been discontinued. This means that it is no longer actively developed or maintained, leading to its lack of support on Oracle Cloud Infrastructure (OCI). In contrast, the other MPI distributions listed, such as OpenMPI, MPICH, and MVAPICH, are widely recognized and maintained, ensuring ongoing support and improvements. These implementations are often used in high-performance computing environments and are regularly updated to incorporate new features and enhancements, maintaining their compatibility and support within modern computing infrastructures like OCI. Thus, Platform MPI stands out as the only distribution that has been phased out and is no longer supported in this context.

Platform MPI is the correct answer because it is a proprietary MPI implementation that was once associated with a specific company's offerings, which has since been discontinued. This means that it is no longer actively developed or maintained, leading to its lack of support on Oracle Cloud Infrastructure (OCI).

In contrast, the other MPI distributions listed, such as OpenMPI, MPICH, and MVAPICH, are widely recognized and maintained, ensuring ongoing support and improvements. These implementations are often used in high-performance computing environments and are regularly updated to incorporate new features and enhancements, maintaining their compatibility and support within modern computing infrastructures like OCI. Thus, Platform MPI stands out as the only distribution that has been phased out and is no longer supported in this context.