| Subject: Re: P4 Hyperthreading/Improving cache usage |
| From: Randall Schulz |
| Date: 31/08/2004, 17:35 |
Mike,
At Tuesday 31 August 2004 04:12 in alt.sci.seti Mike W wrote:
...
If you are running two copies of Seti on a HT Pentium, I believe that
they are seen by Windows as being two separate images, since you have to
run each one in its own directory. This means that they use two
separate chunks of cache memory, leading to potentially lower perfomance
if the cache gets full.
Has anyone found a way of letting Windows know that you want to use two
copies of the /same/ program, therefore allowing both copies to share
cache memory contents where appropriate?
I tried, using a "shortcut" to the first .exe file for the second
instance of Seti, without success.
If the file system on which you've installed the SETI@home software is
NTFS, then hard links can be used. The only way I happen to know to
create them is with Cygwin (<http://cygwin.com/>). I'm sure this isn't
the only way, but since I've always had it available, I never had to
figure out how to use native Windows commands or utilities to create hard
links.
Regards
Mike.
Randall Schulz