Re: with a Cray
- To: mathgroup at yoda.physics.unc.edu
- Subject: Re: with a Cray
- From: Booker Bense <benseb at sdsc.edu>
- Date: Fri, 1 May 92 07:54:20 PDT
- Mathematica kernals do exist for a Cray. I doubt if one has ever been installed at a pubically available site, the price is so astronomical. Also, having a Cray run mathematica is really not going to be of much benefit, scalar codes only run at about 10 mflops on a YMP. For the price of an Mma kernal you could buy a bunch of decstations and just wait longer for your answer. Since much of MMa is character oriented, the performance would probably be even worse. The only real advantage of a Cray Kernal is access to more memory. You'd be far better off spending money on more memory for your decstation than attempting to run a remote kernal on a YMP. You mention that you have access to a 432, spend the $3000 US and put another 32 megabytes in your Decstation and up your swap partion to about 200 megabytes. This will be far zippier than running over the network to a remote kernal. - Given the caveats above, One extremely useful way to interact with a Cray would be to construct NUMERICAL matrices in MMa and then ship them over the network to a YMP to munch on. Here at SDSC we've developed a couple libraries to make that kind of work simpler you can get them by anonymous ftp to sdsc.edu . The library that you want is libsdsc.a which contains binary I/O libraries. - Booker C. Bense: SDSC Consulting