From markus@franck.pc.uni-koeln.de Sat Aug 2 12:15:05 1997 Received: from rs1.rrz.Uni-Koeln.DE for markus@franck.pc.uni-koeln.de by www.ccl.net (8.8.3/950822.1) id MAA14799; Sat, 2 Aug 1997 12:04:04 -0400 (EDT) Received: from franck.pc.uni-koeln.de (root@as5200-1-c53.rrz.Uni-Koeln.DE [134.95.124.181]) by rs1.rrz.Uni-Koeln.DE (8.8.5/8.8.6) with ESMTP id SAA51068 for ; Sat, 2 Aug 1997 18:04:03 +0200 Received: (from markus@localhost) by franck.pc.uni-koeln.de (8.8.5/8.8.5) id SAA25576; Sat, 2 Aug 1997 18:03:10 +0200 To: chemistry@www.ccl.net Subject: Re: Alpha + Linux ? References: Mime-Version: 1.0 (generated by tm-edit 7.106) Content-Type: text/plain; charset=US-ASCII From: Markus Dickebohm Date: 02 Aug 1997 18:03:10 +0200 In-Reply-To: Cheol Choi's message of "Fri, 1 Aug 1997 15:08:55 -0400 (EDT)" Message-ID: Lines: 37 X-Mailer: Gnus v5.4.63/XEmacs 20.2 X-URL: http://www.uni-koeln.de/~acp66 X-PGP-Fingerprint: A0 FE 17 0C A6 B7 7A 0F F0 A0 04 45 F4 91 54 A7 X-Face: (EiYvvA${"nyp)>kY)*s@0|x+.`PH2*GP}HF}/U6e>vR>0R#V9IF'@a>ce?{Oud Au}2Om|K S6R{JT$|\ZF(IHHey5B(*+8.N_Z.c]O2KVJSxAT-y6RNmspR{:=^^0-fq,>z'a+4'JQyxPMWnZ5#h<( Rq{]7T;:kg^k0-P64revjBT+P)^^':u9>]f2UEFssRXw2a}A63'eq2mhgY].cTp8LvDz0Jf$:CLW=Dl |Y73lr >> Cheol Choi schrieb am Fri, 1 Aug 1997 15:08:55 -0400 (EDT): > Is there anyone who has good experience with Alpha + Linux combination? Linux is really running quite well on the Alpha platform in the meantime. We have it running on a little workstation for more than a year now. But if you're interested in pure number crunching performance, one has to consider that the freely available compilers (gcc, f2c) aren't as good optimized for the Alpha processors as their Digital Unix counterparts. The situation has been improved much in the last months but I think DEC still has a little projection. If you're doing Fortran development it has to be mentioned that the GNU Fortran Compiler g77 isn't yet ported to Linux Alpha. There was a successful call for donations on the Alpha-Linux mailinglists for buying an Alpha machine for the main g77-developper Craig Burley. Since Craig is using the Alpha now as main development platform most of the port has been done these days but it isn't finished. The last major disadvantage of Linux on the Alpha platform is a linker bug which prevents building large binaries (as far as I know, this is why Gaussian hasn't been ported to Linux until now). But: if you have a Digital Unix license you can compile your programs on a machine running Digital Unix and execute them on the Linux one. This way you get the advantages of both worlds. Markus -- Markus Dickebohm E-Mail: m.dickebohm@uni-koeln.de Physical Chemistry University of Cologne Germany >From dobler@psc.edu Fri Aug 1 12:28 EDT 1997 Received: from pscuxa.psc.edu for dobler@psc.edu by bedrock.ccl.net (8.8.6/950822.1) id MAA13497; Fri, 1 Aug 1997 12:28:38 -0400 (EDT) Received: from sampo.psc.edu (sampo.psc.edu [128.182.62.82]) by pscuxa.psc.edu (8.8.5/8.8.2) with SMTP id MAA01239 for ; Fri, 1 Aug 1997 12:28:34 -0400 Message-ID: <33E210AD.78D0@psc.edu> Date: Fri, 01 Aug 1997 12:37:01 -0400 From: Stephanie Dobler Reply-To: dobler@psc.edu Organization: Pittsburgh Supercomputing Center X-Mailer: Mozilla 3.0 (Win95; I) MIME-Version: 1.0 To: jkl@ccl.net Subject: Supercomputing Techniques: CRAY J90/C90 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii Pittsburgh Supercomputing Center Supercomputing Techniques: CRAY J90/C90 September 8-11, 1997 -------------------------------------------------------------------------- REGISTRATION DEADLINE: August 15, 1997 --------------------------------------------------------------------------- PURPOSE: The purpose of this three and a half day workshop is to introduce participants to computing on the CRAY J90/C90. Participants will gain experience in running jobs on the J90/C90, optimizing code, parallel processing, and on the use of graphics software libraries and packages. AGENDA: The first day of this workshop is designed to introduce participants to the J90/C90 platform. During this time, participants will become familiar with PSC's supercomputing environment, the UNICOS operating system, CRAY compiling, job submission, troubleshooting, and debugging. The last three days of this workshop are designed for users who are already familiar with running jobs on the CRAY J90/C90 and who are interested in more advanced topics: * The Code Optimization portion will cover performance monitoring techniques and strategies to improve the performance of one's code. * The Parallel Processing portion concentrates on the mechanics of parallel computing on the J90/C90 systems. * The final day will explore graphics and visualization topics ranging from a general overview of graphics packages available at PSC to a more advanced discussion of animation and 3-D graphics. To ensure that participants receive quality training, our workshops incorporate both lectures and extensive hands-on lab sessions. Programming exercises are carefully designed to reinforce concepts and techniques taught in class. Our instructors have strong scientific and technical backgrounds and are available for individual consultation during lab sessions. In addition to the lab exercises, lab time will also be available for participants to optimize their own code with the help and supervision of our instructors. Participants are encouraged to bring their code, but not required. ==> A working knowledge of FORTRAN or C and UNIX are required. REGISTRATION FEES: Admission to this training workshop is free to the United States academic community. Interested corporate and government applicants, as well as applicants >from academic institutions outside the United States should contact Kathi Burgard at (412) 268-5131 for information on attendance fees. HOUSING AND TRAVEL: Housing and travel are the responsibility of participants, but we will provide information on local hotels at your request. Group rates for local hotels are available on a first-come, first-served basis. REGISTRATION: To register for Supercomputing Techniques: CRAY J90/C90, please complete and return the application form below by August 15, to: Workshop Application Committee ATTN: Kathi Burgard Pittsburgh Supercomputing Center 4400 Fifth Avenue Pittsburgh, PA 15213. You may also apply for this workshop by sending requested information via electronic mail to workshop@psc.edu or via fax to (412/268-5832). All applicants will be notified of acceptance during the week of August 18, 1997. For additional online information, including a preliminary agenda, please visit the workshop's homepage: http://www.psc.edu/training/J90_Sept_97/welcome.html =============================================================================== Name: Please circle one: Ms. Mr. Dr. Prof. Department: Univ/Ind/Gov Affiliation: Address: Telephone: W ( ) H( ) Electronic Mail Address: Social Security Number: Citizenship: Are you a PSC user (yes/no)? If yes, please give your PSC username: Academic Standing (please check one): F - Faculty UG - Undergraduate I -Industrial PD - Postdoctorate UR - University Research Staff GV-Government GS - Graduate Student UN - University Non-Research Staff O - Other Please explain why you are interested in attending this workshop and what you hope to gain from it. _______________________________________________________________________ NOTE: THE FOLLOWING TWO QUESTIONS MUST BE COMPLETED FOR THE APPLICATION TO RECEIVE CONSIDERATION. _______________________________________________________________________ 1. Briefly describe your computing background (scalar, vector, and parallel programming experience; platforms; languages): 2. Briefly describe your research interests: Please indicate the workshop for which you are applying: All applicants will be notified of acceptance during the week of August 18.