Do you have memory interleave turned on in the BIOS? I don't know how much this app is moving stuff in and out of memory, but there's a good chance that if this is currently off, it would degrade performance. It was not turned on by default on my Soyo Dragon+. Jay On Wednesday, October 30, 2002, at 10:07 PM, Phil Mendelsohn wrote: > tclug-list-request at mn-linux.org writes: >> Ok ... I have finally finished the simple comparison on different = >> kernels and computational speed. I ran a commercial code that >> required memory (lots of matrix solutions) = >> and large amounts of CPU times. Recall that I previously posted the = >> times, stating I was disappointed in the speedup from a PIII 700 MHz. >> = >> The results are listed below. The AMD machine was dedicated to this = >> problem - nothing else was running at the time. PIII 700 MHz (dual >> CPU - only 1 used for solution) 96,370 secs >> - Win2000 AMD XP 2100+ (single CPU) 686 kernel (?) >> 65,039 secs >> AMD XP 2100+ (single CPU) Athlon kernel 63,411 secs >> - Linux RH7.2 No real improvement in performance. I must say I am >> disappointed in the = >> speedup. > > Um, if you're crunching numbers, the kernel shouldn't be interacting > very much. Where kernel comes in is if you're losing speed to > time-sharing, process swap overhead, paging, or maybe I/O. Seems to > me you wouldn't be hitting any of those things, so I guess I'm > surprised you're seeing as *much* as you did. (Without knowing what > your algorithm or data set is... nothing better than being > unencumbered by facts!) > -- > "To misattribute a quote is unforgivable." -- Anonymous > _______________________________________________ > Twin Cities Linux Users Group Mailing List - Minneapolis/St. Paul, > Minnesota > http://www.mn-linux.org tclug-list at mn-linux.org > https://mailman.mn-linux.org/mailman/listinfo/tclug-list