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cluster:192 [2020/02/24 19:21]
hmeij07 		cluster:192 [2020/02/26 18:34]
hmeij07 [Usage]
Line 6: Line 6:
 A page for me on how these 12 nodes were build up after they arrived. To make them "ala n37" which as the test node in redoing our K20 nodes, see [[cluster:172|K20 Redo]] A page for me on how these 12 nodes were build up after they arrived. To make them "ala n37" which as the test node in redoing our K20 nodes, see [[cluster:172|K20 Redo]]
  
-Page best read bottom to top.+Page best followed bottom to top.
  
 +==== Usage ====
 +
 +The new queue ''exx96'' will be comprised of nodes ''n79-n90''.  Each node holds 4x RTX2080S gpus, 2x Xeon Silver 4214 2.2 Ghz cpus, 96 GB memory and a 1TB SSD. ''/localscratch'' is around 800 GD.
 +
 +A new static resource is introduced for all nodes holding gpus. ''n78'' in queue ''amber128'' and ''n33-n37'' in queue ''mwgpu''.  The name of this resource is ''gpu4''.  Moving forward please use it instaed of ''gpu'' or ''gputest''.
 +
 +The wrappers provided assume your cpu:gpu ration is 1:1 hence in your submit code you will have ''#BSUB -n 1'' and in your resource allocation line ''gpu4=1''.  If your ratio is something else you can set CPU_GPU_REQUEST, for example CPU_GPU_REQUEST=4:2 which expectas the lines ''#BSUB -n 4'' and ''gpu4=2'' in your submit script.
 +
 +The wrappers (78.mpich3.wrapper for n78, and n37.openmpi.wrapper for all others) are located in ''/usr/local/bin'' and will set up the environment and start these applications: amber, lammps, gromacs, matlab and namd.
 + 
 +
 +<code>
 +bhosts -l n79
 +             gputest gpu4
 + Total             0    3
 + Reserved        0.0  0.1
 +
 +lsload -l n79
 +
 +HOST_NAME               status  r15s   r1m  r15m   ut    pg    io  ls    it   tmp   swp   mem    gpu
 +n79                         ok   0.0   0.0   0.0   0%   0.0     0   0 2e+08  826G   10G   90G    3.0
 +
 +mdout.325288:|  Master Total CPU time:          982.60 seconds     0.27 hours  1:1
 +mdout.325289:|  Master Total CPU time:          611.08 seconds     0.17 hours  4:2
 +mdout.326208:|  Master Total CPU time:          537.97 seconds     0.15 hours 36:4
 +
 +#BSUB -n 4
 +#BSUB -R "rusage[gpu4=2:mem=6288],span[hosts=1]"
 +export CPU_GPU_REQUEST=4:2
 +
 +</code>
 ==== Miscellaneous ==== ==== Miscellaneous ====
  
-Add scheduler, reconfigure, elim. Test it out.+Install scheduler RPM for CentOS7, reconfigure (hosts, queue, static resource), elim. Test it out with old wrapper.
  
 Edit the n37.openmpi.wrapper for n33-n37 and n79-90 and the one on n78 for the new static resource ''gpu4''. Edit the n37.openmpi.wrapper for n33-n37 and n79-90 and the one on n78 for the new static resource ''gpu4''.
  
-Add nodes to ZenOSS hpcmon+Add nodes to ZenOSS hpcmon. 
 + 
 +Propagate global ''known_hosts'' files in users ~/.ssh/ dirs. 
 + 
 +Look at how accounting ties in with resource request ''gpu4='' versus ''gpu='' ...
  
 <code> <code>
cluster/192.txt · Last modified: 2022/03/08 18:29 by hmeij07

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