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  * JAC and Factor_IX are two sample programs included with Amber (one memory intensive, one IO intensive, forgot what is what).

  * "1g6r" is a program from Surjit Dixit that should scale really well in his opinion.

====== Swallowtail ======


^  Amber  ^  What  ^  Host  ^  N  ^  JAC  ^  Factor_IX  ^
|  9+openmpi-1.2+intel-9  |  Sander.MPI  |  C-00  |  02  |  2m42s  |  4m54s  |
|  9+openmpi-1.2+intel-9  |  Sander.MPI  |  C-00  |  04  |  1m27s  |  2m33s  |
|  9+openmpi-1.2+intel-9  |  Sander.MPI  |  C-00  |  08  |  1m00s  |  1m57s  |

^  Amber  ^  What  ^  Host  ^  N  ^  1g6r  ^
|  9+openmpi-1.2+intel-9  |  pmemd  |  C-00  |  02  |  2m55s  |
|  9+openmpi-1.2+intel-9  |  pmemd  |  C-00  |  04  |  1m32s  |
|  9+openmpi-1.2+intel-9  |  pmemd  |  C-00  |  08  |  1m03s  |

====== Greentail ======

Above some old benchmark runs against swallowtail's infiniband switch.

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= ^
|  9+openmpi-1.2+intel-9  |  Sander.MPI  |  n1  |  02  |  2m36s  |  4m14s  |    |
|  9+openmpi-1.2+intel-9  |  Sander.MPI  |  n1  |  04  |  1m23s  |  2m14s  |    |
|  9+openmpi-1.2+intel-9  |  Sander.MPI  |  n1  |  08  |  0m47s  |  1m20s  |    |
|  9+openmpi-1.2+intel-9  |  Sander.MPI  |    |  16  |  1m04s  |  2m17s  |  8  |
|  9+openmpi-1.2+intel-9  |  Sander.MPI  |    |  16  |  0m42s  |  2m07s  |  1  |

^  Amber  ^  What  ^  Host  ^  N  ^  1g6r  ^ ptile= ^
|  9+openmpi-1.2+intel-9  |  pmemd  |  n1  |  02  |  2m40s  |    |
|  9+openmpi-1.2+intel-9  |  pmemd  |  n1  |  04  |  1m23s  |    |
|  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  |





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