aj5@mentor.cc.purdue.edu (Bill Basden) (01/24/89)
Does anyone know of a software product that can emulate the 80x87? Someone told me that they had heard of a PD program that could do this on a 80286 or a 80386 machine but I haven't been able to track it down. I don't mind a decrease in speed when I see what they're getting for a '387. Bill Basden aj5@mentor.cc.purdue.edu BASDEN@PURCCVM mentor.cc.purdue.edu!aj5
mcdonald@uxe.cso.uiuc.edu (01/25/89)
> I don't mind >a decrease in speed when I see what they're getting for a '387. There has been a serious price collapse for 387's, at least 20MHz ones. I just got one for $430 or thereabouts from Hamilton-Avnet. In PC week the adds are also near there. And the speed increase if great if you need it. Yesterday we got our new spiffy $40000 DEC Vaxstation 3100 connected to our Ethernet, and I was able to run the Dhrystone. At 4800 it is half as fast as the $6000 Dell 310. Using the Whetstone floating benchmark, the Dell is 20% faster than the VAX. Without it - I rebooted before finishing.
davidsen@steinmetz.ge.com (William E. Davidsen Jr) (01/30/89)
In article <45900197@uxe.cso.uiuc.edu> mcdonald@uxe.cso.uiuc.edu writes: | And the speed increase if great if you need it. Yesterday we got our | new spiffy $40000 DEC Vaxstation 3100 connected to our Ethernet, | and I was able to run the Dhrystone. At 4800 it is half as fast | as the $6000 Dell 310. Using the Whetstone floating benchmark, the | Dell is 20% faster than the VAX. Without it - I rebooted before finishing. You are correct about the speed increase, a factor of 30 is possible (but not common). I can't quite see you Dhrystone numbers for the 3100, though. I got 24194 no registers, 26316 with. This is in line with all other results I (and others at my site) got. Could you have used the real time instead of the CPU and had a background load? -- bill davidsen (wedu@ge-crd.arpa) {uunet | philabs}!steinmetz!crdos1!davidsen "Stupidity, like virtue, is its own reward" -me
mcdonald@uxe.cso.uiuc.edu (01/31/89)
>| And the speed increase if great if you need it. Yesterday we got our >| new spiffy $40000 DEC Vaxstation 3100 connected to our Ethernet, >| and I was able to run the Dhrystone. At 4800 it is half as fast >| as the $6000 Dell 310. Using the Whetstone floating benchmark, the >| Dell is 20% faster than the VAX. Without it - I rebooted before finishing. >I can't quite see you Dhrystone numbers for the 3100, >though. I got 24194 no registers, 26316 with. This is in line with all >other results I (and others at my site) got. Could you have used the >real time instead of the CPU and had a background load? I boo-boo'ed about the Vax. It is a 3500, not a 3100. But is is $40000. (Is that 3100 the new MIPS RISC box? 25000 sounds right for it.)
davidsen@steinmetz.ge.com (William E. Davidsen Jr) (02/03/89)
In article <45900200@uxe.cso.uiuc.edu> mcdonald@uxe.cso.uiuc.edu writes: | I boo-boo'ed about the Vax. It is a 3500, not a 3100. But is is $40000. | | (Is that 3100 the new MIPS RISC box? 25000 sounds right for it.) Yes. There is a lot of confusion because the VAXstation 3100 is a microVAX and the DECstation 3100 is the MIPS machine. I would think that they would have enough number to go 'round to use another for the RISC archetecture. The RISC machine is "real fast" by any standard, but I want to see what Sun releases at their press conference in March. -- bill davidsen (wedu@ge-crd.arpa) {uunet | philabs}!steinmetz!crdos1!davidsen "Stupidity, like virtue, is its own reward" -me