Newsgroups: comp.parallel.pvm
From: Willem Vermin <sond0074>
Subject: solution to bad performance of pvm on SP2
Organization: Academic Computer Services Amsterdam (SARA)
Date: 10 Jan 1996 13:38:43 GMT
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Message-ID: <4d0fh3$i0t@mira.sara.nl>

We found that pvm has a very bad performance transmitting blocks larger
than 16Kbyte on an SP2, PVM_ARCH=RS6K, running AIX 4.1.4. (pvm level 3.3.10)

Solution:

in src/lpvm.c:

replace

#define TTSOCKBUF       0x8000

by

#define TTSOCKBUF       0x40000

Willem Vermin
SARA
willem@sara.nl


