GPU enhancements

Enabling GPU detection for LSF is now available with automatic configuration. To enable automatic GPU configuration, configure LSF_GPU_AUTOCONFIG=Y in the lsf.conf file.

When enabled, the lsload -gpu, lsload -gpuload, and lshosts -gpu commands will show host-based or GPU-based resource metrics for monitoring.

LSF now allows you to request additional GPU resource requirements to allow you to further refine the GPU resources that are allocated to your jobs. The existing bsub -gpu command option, LSB_GPU_REQ parameter in the lsf.conf file, and the GPU_REQ parameter in the lsb.queues and lsb.applications files now have additional GPU options to make the following requests:

• The gmodel option requests GPUs with a specific brand name, model number, or total GPU memory.
• The gtile option specifies the number of GPUs to use per socket.
• The gmem option reserves the specified amount of memory on each GPU that the job requires.
• The nvlink option requests GPUs with NVLink connections.

You can also use these options in the bsub -R command option or RES_REQ parameter in the lsb.queues and lsb.applications files for complex GPU resource requirements, such as for compound or alternative resource requirements. Use the gtile option in the span[] string and the other options (gmodel, gmem, and nvlink) in the rusage[] string as constraints on the ngpus_physical resource.

To specify these new GPU options, specify LSB_GPU_NEW_SYNTAX=extend in the lsf.conf file.