How do I utilize the large memory node on the Altix 3700?
Submitting Jobs to the Large Memory Node on the SGI Altix 3700 System Effective 9 January 2006, the SGI Altix system will have undergone a memory upgrade, to increase the memory on one of the four nodes from approximately one gigabyte (GB) per processor, to approximately four GB per processor, thus more effectively utilizing valuable AFRL DSRC resources. After subtracting out system overhead, users should have access to approximately 3.5 GB of accessible memory per processor, on this “fat” Altix node. Users who want to use the larger per-processor memory resources of the large-memory node, must specify both the number of processors needed, and the amount of memory required. LSF will then be able to schedule your job on that node. For example, say your scalable code needs 100 processors, and 400 GB of memory. 400 GB of memory is 409,600 megabytes (MB), or 419,430,400 kilobytes (KB). (This is based on doing each conversion, by multiplying by 1,024.) You can take advantage of the large-me
