Re: Cray-2 Fast Memory

jac@moonshine.llnl.gov (James A. Crotinger)
Mon, 31 May 1993 06:15:02 GMT

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Re: Cray-2 Fast Memory jac@moonshine.llnl.gov (1993-05-31)
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Newsgroups: comp.compilers,comp.sys.super
From: jac@moonshine.llnl.gov (James A. Crotinger)
Keywords: Cray, architecture
Organization: Magnetic Fusion Energy - LLNL
References: 93-05-062 93-05-134
Date: Mon, 31 May 1993 06:15:02 GMT

desj@ccr-p.ida.org (David desJardins) writes:
> We have never had a real problem with running out of local memory (and I
> have never heard of anyone using the paging option), but then our workload
> generally consists of relatively small codes, a few thousand lines
> perhaps, rather than several-hundred-thousand-line behemoths.


    We have several codes on the NERSC Cray 2's that are always running
out of local memory. These codes employ a sophisticated runtime system
that provides an interpreter that has access to compiled variables and
subroutines. All of our stuff is compiled with -eP (the paging options)
but apparently some of the commercial libraries we link with are not.
This has gotten to be a real pain!


    Jim
--
James A. Crotinger Lawrence Livermore N'Lab
jac@moonshine.llnl.gov P.O. Box 808; L-630
(510) 422-0259 Livermore CA 94550
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