[ https://issues.apache.org/jira/browse/MESOS-5342?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15275892#comment-15275892 ]
Chris commented on MESOS-5342: ------------------------------ I've implemented code to support this particular feature and need to submit it for review. > CPU pinning/binding support for CgroupsCpushareIsolatorProcess > -------------------------------------------------------------- > > Key: MESOS-5342 > URL: https://issues.apache.org/jira/browse/MESOS-5342 > Project: Mesos > Issue Type: Improvement > Components: cgroups, containerization > Affects Versions: 0.28.1 > Reporter: Chris > > The cgroups isolator currently lacks support for binding (also called > pinning) containers to a set of cores. The GNU/Linux kernel is known to make > sub-optimal core assignments for processes and threads. Poor assignments > impact program performance; particularly in the case of applications > requiring GPU resources. > Most cluster management systems from the HPC community (SLURM) provide both > cgroup isolation and cpu binding. This feature would provide similar > capabilities. The current interest in supporting Intel's Cache Allocation > Technology will require making choices about where container's are going to > run on the mesos-agent's processor(s) - this feature is a step toward > developing a robust solution. > The improvement in this JIRA ticket will handle hardware topology detection, > track container-to-core utilization in a histogram, and use a mathematical > optimization technique to select cores for container assignment based on > latency and the container-to-core utilization histogram. > For GPU tasks, the improvement will prioritize selection of cores based on > latency between the GPU and cores in an effort to minimize copy latency. -- This message was sent by Atlassian JIRA (v6.3.4#6332)