From chemistry-request:~at~:server.ccl.net Wed Aug 1 23:40:53 2001 Received: from cascara.uvic.ca (root {*at*} [142.104.5.28]) by server.ccl.net (8.11.0/8.11.0) with ESMTP id f723er517683 for ; Wed, 1 Aug 2001 23:40:53 -0400 Received: from pinc226.pinc.com (pinc226.pinc.com [199.60.118.226]) by cascara.uvic.ca (8.11.3/8.11.3) with SMTP id f723ep122924 for ; Wed, 1 Aug 2001 20:40:51 -0700 From: Roy Jensen To: chemistry $#at#$ ccl.net Subject: SUMMARY: G98W on multi-processor computers Date: Wed, 01 Aug 2001 20:41:43 -0700 Message-ID: References: In-Reply-To: X-Mailer: Forte Agent 1.8/32.548 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by server.ccl.net id f723er517684 Thanks to those who responded to my question. Roy Jensen ORIGINAL MESSAGE ================ > It was recently discussed and agreed that Gaussian for Windows was > compiled for a single processor. One suggestion was to run two jobs at > once to make use of the second processor. How does one do this? I > presume the method also works on quad-processor PCs. SUMMARY ======= Gaussian 98W cannot use more than one processor but you can install several copies of Gaussian in different directories, with different scratch directories, and run them individually. The Windows Operating System dynamically assigns jobs to the processors on the basis of usage; each job should go to a different processor. One person was concerned that this may violate the Gaussian license. Doug Fox responded with an alternate method for starting multiple Gaussian jobs (command line from a DOS prompt similar to Unix). Although no definitive, I think it resolves this issue.