How many memory is necessary to run EGS5?

FAQ AUTHOR: Tanaka, Shimane Prefectual Institute of Public Health and Environment Science, Japan
T.Sugita, SSL
Y.Namito, KEK

The quick answer is:

Y1 (MB) = 154 + 90 MXMED
Y2 (MB) = 354 + 90 MXMED
Here Y1 and Y2 are memory size in MB of EGS5 and EGS5+OS respectively. These values are on XP and linux. If you computer does not have sufficient memory. Please try followings.
Remedy 1 : Reduce value of MXMED.
Remedy 2 : Reduce values of NBFIT and NEFIT in include/egs_h.f . This default values are, NBFIT=128 and NEXFIT=32. Possible new values are, NBFIT=2 and NEXFIT=2. As these valiables are related to GS cross section, this modification works as long as you do not use GS cross section.

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last updated 2009-09-16