My system is below, seems to work for me


Robert Frailey
Manager Information Systems
Utah Medical Products Inc.

----- Original Message ----- From: "Jeffrey Butera" <>
To: "U2 Users List" <>
Sent: Friday, June 21, 2013 11:04 AM
Subject: [U2] Unidata configuration question

Looking at a couple of Unidata parameters:


I'm curious about EXPBLKSIZE.  The doc says:

EXPBLKSIZE Number of local pages used for expression buffers. udt keeps a buffer of this size for intermediate results. ibm recommends you set this parameter so the buffer is one-quarter to one-half the size of a global page.

SHM_GPAGESZ Size of each global page, in 512-byte units.

SHM_GNPAGES Number of global pages in a shared memory segment.

From my parameters, it appears EXPBLKSIZE is 1/4 of the number of global pages, but the doc says it should be 512 if I use 1/4 of the SIZE of each global page.

I'm certainly open to advice on this topic.

Jeffrey Butera, PhD
Associate Director for Applications and Web Services
Information Technology
Hampshire College

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