Cluster MOBO suggestions
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Mike Mettke mettke at lucent.comMon Jan 8 08:30:33 PST 2001
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All, did anybody run the same test on an Serverworks HE chipset ? They claim 4.1GByte/s bandwidth which sounds, well, fantastic. If that's anywhere near true we might get them. regards, Mike Steven Castillo wrote: > On Sat, 6 Jan 2001, Leo Magallon wrote: > > > Thanks, I think i've almost decided on getting the Super 370DLE. It seems > > like THE motherboard choice. By choosing this mobo I can save on buying the > > NICs because it comes with it. > > > > > > Leo. > > > > Joey Raheb wrote: > > > > Hello Leo: > > You might want to consider the Super 370DER (built-in rage ati graphics) > or 370DE6 instead. These boards use the Serverworks HE-SL > chipset rather than the Serverworks LE chipset. The HE-SL chipset uses > 2-way interleaved memory for improved memory bandwidth. Please see the > post from Steffan Persvold below listing stream benchmarks for these two > different chipsets. I happened to save the posting because we were > considering different dual CPU mobo's. > > -- > Steve Castillo > > Professor > Klipsch School of Electrical and Computer Engineering > New Mexico State University > scastill at nmsu.edu > (505)646-3117 > > From sp at scali.no Mon Jan 8 08:08:42 2001 > Date: Mon, 11 Dec 2000 19:10:41 +0100 > From: Steffen Persvold <sp at scali.no> > To: Ray Muno <muno at aem.umn.edu> > Cc: beowulf at beowulf.org > Subject: Re: Serverworks chip sets > > Here are a more meaningful comparision. The comparison is between a Tyan > S2510 based on the LE chipset and a Supermicro 370DER based on the HE-SL > chipset. > > Both machines are equipped with 2x PIII-800EB(133) CPUs and 512MByte > PC-133 SDRAM > > Using one CPU: > > 370DER: > ---------------------------------------------- > Double precision appears to have 16 digits of accuracy > Assuming 8 bytes per DOUBLE PRECISION word > ---------------------------------------------- > Array size = 2000000 > Offset = 0 > The total memory requirement is 45 MB > You are running each test 20 times > -- > The *best* time for each test is used > *EXCLUDING* the first and last iterations > ---------------------------------------------------- > Your clock granularity appears to be less than one microsecond > Your clock granularity/precision appears to be 1 microseconds > ---------------------------------------------------- > Function Rate (MB/s) Avg time Min time Max time > Copy: 374.2689 0.0855 0.0855 0.0856 > Scale: 401.9594 0.0796 0.0796 0.0797 > Add: 475.5536 0.1010 0.1009 0.1010 > Triad: 475.1911 0.1011 0.1010 0.1012 > ---------------------------------------------------- > Solution Validates! > ---------------------------------------------------- > > S2510: > ---------------------------------------------- > Double precision appears to have 16 digits of accuracy > Assuming 8 bytes per DOUBLE PRECISION word > ---------------------------------------------- > Array size = 2000000 > Offset = 0 > The total memory requirement is 45 MB > You are running each test 20 times > -- > The *best* time for each test is used > *EXCLUDING* the first and last iterations > ---------------------------------------------------- > Your clock granularity appears to be less than one microsecond > Your clock granularity/precision appears to be 1 microseconds > ---------------------------------------------------- > Function Rate (MB/s) Avg time Min time Max time > Copy: 376.9848 0.0849 0.0849 0.0851 > Scale: 375.0191 0.0854 0.0853 0.0854 > Add: 483.7248 0.0993 0.0992 0.0994 > Triad: 484.5352 0.0991 0.0991 0.0991 > ---------------------------------------------------- > Solution Validates! > ---------------------------------------------------- > > Using both CPUs (OMP makes it a bit easier and adds the numbers for me): > 370DER: > ---------------------------------------------- > Double precision appears to have 16 digits of accuracy > Assuming 8 bytes per DOUBLE PRECISION word > ---------------------------------------------- > Array size = 2000000 > Offset = 0 > The total memory requirement is 45 MB > You are running each test 20 times > -- > The *best* time for each test is used > *EXCLUDING* the first and last iterations > ---------------------------------------------------- > Your clock granularity appears to be less than one microsecond > Your clock granularity/precision appears to be 1 microseconds > ---------------------------------------------------- > Function Rate (MB/s) Avg time Min time Max time > Copy: 468.8234 0.0686 0.0683 0.0693 > Scale: 479.3794 0.0669 0.0668 0.0671 > Add: 541.0826 0.0888 0.0887 0.0888 > Triad: 542.6429 0.0885 0.0885 0.0886 > ---------------------------------------------------- > Solution Validates! > ---------------------------------------------------- > > S2510: > ---------------------------------------------- > Double precision appears to have 16 digits of accuracy > Assuming 8 bytes per DOUBLE PRECISION word > ---------------------------------------------- > Array size = 2000000 > Offset = 0 > The total memory requirement is 45 MB > You are running each test 20 times > -- > The *best* time for each test is used > *EXCLUDING* the first and last iterations > ---------------------------------------------------- > Your clock granularity appears to be less than one microsecond > Your clock granularity/precision appears to be 1 microseconds > ---------------------------------------------------- > Function Rate (MB/s) Avg time Min time Max time > Copy: 353.0918 0.0916 0.0906 0.0926 > Scale: 355.3543 0.0918 0.0901 0.0931 > Add: 397.2821 0.1213 0.1208 0.1222 > Triad: 397.7756 0.1218 0.1207 0.1225 > ---------------------------------------------------- > Solution Validates! > ---------------------------------------------------- > > As you can see the two-way interleaving helps a bit on a Dual-CPU run > (~35% more bandwidth) > > Best regards, > -- > Steffen Persvold Systems Engineer > Email : mailto:sp at scali.no Scali AS (http://www.scali.com) > Tlf : (+47) 22 62 89 50 Olaf Helsets vei 6 > Fax : (+47) 22 62 89 51 N-0621 Oslo, Norway > > _______________________________________________ > Beowulf mailing list > Beowulf at beowulf.org > http://www.beowulf.org/mailman/listinfo/beowulf > > _______________________________________________ > Beowulf mailing list > Beowulf at beowulf.org > http://www.beowulf.org/mailman/listinfo/beowulf
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