jeff@trillian.uchicago.edu (04/07/89)
Some time ago, I asked if anyone out in net.land had some experience with APL2/PC, especially with the quadNA function. So far, I've gotten quite a few messages from interested people asking me to send them any info I received, but there's nothing to report on just yet. Therefore, I am repeating my request: If you have an opinion on the usefulness of quadNA (or of the product in general) then I would greatly appreciate your comments. Please respond by e-mail and I'll summarize to the net. Thanx, --------------------------------------------------------------------------- Jeff Adler jeff@zaphod.uchicago.edu Math Department jeff%zaphod@gargoyle.uchicago.edu University of Chicago jda3@tank.uchicago.edu
rjfrey@kepler1.UUCP (Robert J Frey) (04/08/89)
In article <2634@tank.uchicago.edu> jeff@zaphod.uchicago.edu (Jeff Adler) writes: >Some time ago, I asked if anyone out in net.land had some experience >with APL2/PC, especially with the quadNA function. > My experience with APL2 on _mainframes_ has been that quadNA is an extremely useful capability. For example, we used to quadNA IBM's ESSL routines into APL2, so we could take advantage of the optimized code and utilize the vector heads on the system. In some cases throughput was increased by two orders of magnitude. Also, I love APL, but it's nice to be able to tie into the larger system run- ning it. Right now I'm using an APL2-like product in a UNIX environment, which doesn't support quadNA but a system function called quadSH which allows you to fork off processes from the WS -- not as efficient as quadNA but to a user it appears to work much the same way. I understand that STSC either already has or is about to release its UNIX- based APL with quadNA supported. ============================================================================== |Dr. Robert J. Frey | {acsm, sbcs, polyof}!kepler1!rjfrey | |Kepler Financial Management, Ltd.|------------------------------------------| |100 North Country Rd., Bldg. B | The views expressed are wholly my own and| |Setauket, NY 11766 | and do not reflect those of the Indepen- | |(516) 689-6300 x.16 | dent Republic of Latvia. | ==============================================================================