What is the GPU ID you are referring to? The UUID of the GPU? The short ID listed by `nvidia-smi` when listing GPUs? The minor number associated with the underlying /dev device (which may be different than the number appearing at the end of /dev/nvidia*). Or do you just care about the number on /dev/nvidia* so that you can detect which device you actually have access to on the file system?
Either way, there is no builtin support in mesos for getting any of these values. However, you could easily run some script as a "pre-command" to get at any of thees numbers. For the UUID and short ID from `nvidia-smi`: $ nvidia-smi -L For the minor numbers: $ nvidia-smi -q | grep Minor Minor Number : 0 Minor Number : 1 Minor Number : 2 Minor Number : 3 For the actual /dev devices you have access to: Loop through and call `touch` on each /dev/nvidia* device and see which one's don't give you an error. On Thu, Jun 30, 2016 at 2:47 PM Royce Cheng-Yue <[email protected]> wrote: > Hi everyone, > > So far, I'm able to run a Mesos cluster with GPU resource allocation and > can issue commands using mesos-execute; however, the commands I am planning > to run require the allocated GPU resource IDs. Specifically, before our > command executes, we need to set an environment variable which specifies > the GPU ID to run the command on. Is there a way to retrieve the GPU ID > after allocation and use the ID in our command before task execution? > > Thanks, > Royce > > The information in this email is confidential and may be legally > privileged. It is intended solely for the addressee. Access to this email > by anyone else is unauthorized. If you are not the intended recipient, any > disclosure, copying, distribution or any action taken or omitted to be > taken in reliance on it, is prohibited and may be unlawful. >
