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cluster:125 [2014/02/17 18:09]
hmeij [What changes?]
cluster:125 [2014/02/17 18:13]
hmeij [What changes?]
Line 23: Line 23:
   * mw256fd appears   * mw256fd appears
   * on both mw256 (n33-n37) and mw256fd (n38-n45) exclusive use is disabled (#BSUB -x)   * on both mw256 (n33-n37) and mw256fd (n38-n45) exclusive use is disabled (#BSUB -x)
-  * the max number of jobs slots per node is 32 on ''mw256fd'' but 28 on ''mw256'' because the GPUs also need access to cores (4 per node for now).+  * the max number of jobs slots per node is 32 on ''mw256fd'' but 28 on ''mw256'' because the GPUs also need access to cores (4 per node for now) ... for now, it may be that max is going to be set to 8 if too many jobs grab too many job slots. You should benchmark your job to understand what is optimal. 
 + 
 +Memory: 
 + 
 +  * Since fewer and fewer nodes are deployed in our cluster with large memory footprints, it becomes important to estimate how much memory you need (add 10-20%) and reserve that via the scheduler so your jobs do not crash. 
 + 
 +<code> 
 +#BSUB -R "rusage[mem=X]" 
 +</code>
  
 Gaussian: Gaussian:
cluster/125.txt · Last modified: 2014/02/26 20:32 by hmeij