HPC-X General Support
The platform and requirements for HPC-X are detailed in the following table:
| Platform | Versions | 
| MLNX_OFED | 23.04-0.5.3.3 | 
| NVIDIA BlueField-2 | 24.37.1014 | 
| NVIDIA ConnectX-7 | 28.37.1014 | 
| NVIDIA ConnectX-6 Lx | 26.37.1014 | 
| NVIDIA ConnectX-6 Dx | 22.37.1014 | 
| NVIDIA ConnectX-6 | 20.37.1014 | 
| NVIDIA ConnectX-5/ConnectX-5 Ex | 16.35.2000 | 
The following communications libraries and acceleration packages are part of this Mellanox HPC-X® package:
| Library/Acceleration Package | Version Number | 
| Open MPI | 4.1 | 
| Mellanox Scalable Hierarchical Aggregation and Reduction Protocol (SHARP) | 3.3 | 
| HCOLL | 4.8 | 
| UCX | 1.15 | 
| UCC | 1.2 | 
| Open SHMEM specification compliance | 1.41 | 
| ClusterKit2 | 1.8 | 
| nccl-rdma-sharp-plugin3 | 2.3 | 
| GDRCopy | 2.3 | 
| NCCL | 2.17.1-1 | 
| CUDA | 12.1 | 
- Full Open SHMEM v1.4 support is available only if compiled with C11 Standard (see Rebuilding Open MPI from HPC-X™ Sources). 
- ClusterKit is a multifaceted node assessment tool for high performance clusters. 
- nccl-rdma-sharp plugin enables RDMA and Switch-based collectives (SHARP) with NVIDIA's NCCL library. 
When HPC-X is launched with Open MPI without a resource manager job environment (slurm,pbs, etc.), or when it is launched from a compute node, the default rsh/ssh-based launcher will be used. This launcher does not propagate environment variables to the compute nodes. Thus, it is important to ensure the propagation of LD_LIBRARY_PATH variable from HPC-x is done as follows.
            
            %mpirun -x LD_LIBRARY_PATH -np 2 -H host1,host2  $HPCX_MPI_TESTS_DIR/examples/hello_c
    The following table lists the supported operating systems and CPUs for the latest HPC-X.
Starting from HPC-X v2.9, HPC-X will no longer support PPC architecture.
| Operating System | Platforms | 
| RHEL/CentOS 7.x | x86_64, aarch64 | 
| RHEL/CentOS 8.x | x86_64, aarch64 | 
| RHEL/CentOS 9.x | x86_64, aarch64 | 
| CentOS 8.x Stream | x86_64 | 
| SLES 12 SP4 | x86_64, aarch64 | 
| SLES 12 SP5 | x86_64 | 
| SLES 15 SP1 | x86_64 | 
| SLES 15 SP2 | x86_64 | 
| SLES 15 SP3 | x86_64 | 
| SLES 15 SP4 | x86_64 | 
| Ubuntu 18.04 | x86_64 | 
| Ubuntu 20.04 | x86_64, aarch64 | 
| Ubuntu 22.04 | x86_64 | 
| OpenEuler 20.03 | x86_64, aarch64 | 
| Kylin 10 SP1 | x86_64, aarch64 | 
| Kylin 10 SP2 | x86_64, aarch64 |