improve the hspice speed with P4 HT

[dudu]

p4 ht optimization

I have done some experiments to see the speed of HSPICs in PC
HSPICE0403 running the testbench bigmos.sp,
I usingexternal timer to count (hspicetime report in LINUX is not corespond to real time)

condition speed(s)
-----using linux RH72 version of hspice0403
Athelon2000+ RH80(2.4.18) 28
p4 3.2g ht winxp+vmware4+RH80(2.4.18) 22
p4 3.2g ht winxp+vmware4+RH80(2.4.20SMP) 18
p4 3.2g ht RH Fedora1 SMP 19
------using windows version of hspice0403
p4 3.2g ht windows XP +hspice.exe 22
p4 3.2g ht windows XP+hspice_mt.exe(2 cpu option) 27
p4 3.2g ht windows XP+hspice_mt.exe(1 cpu option) 14
the conclusion is that the best option for hspice is runing under windows using hspice_mt with just 1 cpu option, we expect they can optimize the linux version in the future

 

[jimjim2k]

Hi

I think it will worth if you test the following conditions too


1. You optimise the OS environmnet
BY:
- Disabling Antivirus, Firewall, Spyremoval Tools,
- Stopping non-important services
2. You test also in
- Windows 2000 Prof. with SP<4 and SP=4
- Windows 2003 64 bit version


tnx

 

[dudu]

Infact, the machine used to test the hspice is a newly installed winxp Home system( 1G 400Mhz ram) with just several useful thing and also the anti-virus is disabled
The point is that, it looks like for windows version of hspice, it must use the multi-processor enabled binary, but let the cpu itself do the multi-thread optimize(1 cpu option)
for linux, the SMP version of kernal will help to improve the speed, but not as good as windows do, they must reoptimized

 

[soway]

i had known that the hspice under windows is not as accuratly as it under linux,because of the OS.

 

[tlihu]

I'll be very interested in the benchmark of running HSPICE under the latest 2.6.x kernel.

 

[andy2000a]

I have a problem

what Tx size in this benchmark ??
if simulation time only 26sec ..
I think this circiuit is very small ..

if Tx size is large (whole chip simulation)
.. how about Linux/WinXP performance ?

 

[jimjim2k]

I'll be very interested in the benchmark of running HSPICE under the latest 2.6.x kernel.

Hi

It is fine if you could test and run it under 64-bit linux cores (suse or fidora)

tnx

 

[charliec]

I agree.

Without optimization, linux and linux smp get almost the same speed (linux smp is a little faster).

 

[yankuangtu]

i think it's not supported by hspice that muti-cpus