Author: Robert Hyatt
Date: 19:35:31 12/15/98
Go up one level in this thread
On December 15, 1998 at 13:13:11, Vincent Lejeune wrote: >On December 13, 1998 at 23:53:25, Robert Hyatt wrote: > >>On December 13, 1998 at 22:59:08, Larry Applebaum wrote: >> >>>On December 13, 1998 at 22:16:39, Robert Hyatt wrote: >>> >>>snip... >>> >>>>quad xeon is in... and running on ICC... typical speed is 600-800K nodes >>>>per sec, max (so far) is 940K... >>> >>>What are the specs on that system? Motherboard, processor specs, memory, etc >> >> >>It is based on the 450NX chipset, the chassis is made by Intel, and is called >>the SC450NX... has three 400 watt power supplies (hot swappable), slots for >>16 72 bit buffered EDO RAM with 4-way interleaving (interleaving makes SDRAM >>worthless). Comes with three on-board SCSI adapters, two ultra-2 wide >>(low voltage differential signaling) channels and one narrow scsi channel. >>Has 3 external drive bays for CDrom/tape/hard drives, plus 6 hot-swap SCA-2 >>connecters in a SCSI Cage... >> >>My machine has 4 pentium II/xeon 400mhz processors with 512kb of L2 cache, >>plus 512mb of RAM. It has two 4.3 gig 7200 rpm disks for system and so forth, >>and (hopefully tomorrow) will have three 9.1 gig Ultra2 wide SCSI 10,000 RPM >>disks with 4 megs of cache per drive (for the complete set of 3-4-5 piece >>Nalimov tablebases). > > >Can you deduce the relative speed of one Xeon-400 compare to one PII-400, and >compare to one PP-pro 200 ? the xeon/400 is about exactly 2x the pentium pro 200, which makes sense. Although the 1024kb and 2048kb versions will be pretty quick for those programs that need larger caches. these are faster than the stock PII/400 because of the PII's L2 cache running at 1/2 core cpu speed. Last time I tested, I found a PII/400 was about 1.89 or so times faster than a P6/200...
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