RAM and Storage requirements for Openstack cloud
mahendra.paipuri at cnrs.fr
Fri Jul 22 06:49:19 UTC 2022
We are going to deploy Openstack cloud with researchers as primary
target users. We will have around 100 GPUs with 12-15 servers with
Infiniband interconnect. We still do not know the exact spec of servers
nor GPUs but mostly we will have A100s and Intel Xeon processors. What
sort of RAM and Storage requirements we need for a cluster of this size?
Of course, this depends a lot on use cases and this cloud will be
primarily used for HPC and AI. For the storage, we are mainly interested
in the block storage requirements for provisioning VMs. We will most
probably have a shared parallel file system as scratch and project spaces.
Is there any rule of thumb to get to the RAM and storage requirement
numbers based on compute infrastructure we will have? If we can estimate
a sort of "lower bound" that would be really helpful for us. If anyone
have clusters of this size at your organizations and if you can share
the RAM ans storage details of your clouds, that would be very useful
for us too.
Thanks a lot and have a great day!!
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