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cluster:94 [2011/01/25 10:18]
hmeij
cluster:94 [2011/01/25 11:33]
hmeij
Line 20: Line 20:
 Above some old benchmark runs against swallowtail'​s infiniband switch. Above some old benchmark runs against swallowtail'​s infiniband switch.
  
-Below new benchmarks with IPoIB.+Below new benchmarks with IPoIB. "​ptile"​ is the number of jobs slots to allocate per node, so with 16 requested and ptile=1 sixteen individual hosts will be selected and //all// MPI traffic between hosts will go via the Voltaire infiniband switch.
  
 ^  Amber  ^  What  ^  Host  ^  N  ^  JAC  ^  Factor_IX ​ ^ ptile= ^ ^  Amber  ^  What  ^  Host  ^  N  ^  JAC  ^  Factor_IX ​ ^ ptile= ^
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 |  9+openmpi-1.2+intel-9 ​ |  Sander.MPI ​ |    |  16  |  0m42s  |  2m07s  |  1  | |  9+openmpi-1.2+intel-9 ​ |  Sander.MPI ​ |    |  16  |  0m42s  |  2m07s  |  1  |
  
-^  Amber  ^  What  ^  Host  ^  N  ^  1g6r  ^ +^  Amber  ^  What  ^  Host  ^  N  ^  1g6r  ​^ ptile= ​
-|  9+openmpi-1.2+intel-9 ​ |  pmemd  |  ​C-00  ​| ​ 02  |  ​2m55s  | +|  9+openmpi-1.2+intel-9 ​ |  pmemd  |  ​n1  ​| ​ 02  |  ​2m40s  |    ​
-|  9+openmpi-1.2+intel-9 ​ |  pmemd  |  ​C-00  ​| ​ 04  |  ​1m32s  | +|  9+openmpi-1.2+intel-9 ​ |  pmemd  |  ​n1  ​| ​ 04  |  ​1m23s  |    ​
-|  9+openmpi-1.2+intel-9 ​ |  pmemd  |  ​C-00  ​| ​ 08  |  ​1m03s  |+|  9+openmpi-1.2+intel-9 ​ |  pmemd  |  ​n1  ​| ​ 08  |  ​0m47s  |    | 
 +|  9+openmpi-1.2+intel-9 ​ |  pmemd  |    |  16  |  0m43s  |  8  | 
 +|  9+openmpi-1.2+intel-9 ​ |  pmemd  |    |  16  |  0m39s  |  1  |
  
  
cluster/94.txt · Last modified: 2011/01/25 11:39 by hmeij