From jwagener@amoco.com Mon Dec 13 02:52:10 1993 Received: from interlock.amoco.com by dkuug.dk with SMTP id AA17033 (5.65c8/IDA-1.4.4j for ); Mon, 13 Dec 1993 16:57:33 +0100 Received: by interlock.amoco.com id AA13618 (InterLock SMTP Gateway 1.1 for sc22wg5@dkuug.dk); Mon, 13 Dec 1993 09:58:54 -0600 Received: by interlock.amoco.com (Internal Mail Agent-3); Mon, 13 Dec 1993 09:58:54 -0600 Received: by interlock.amoco.com (Internal Mail Agent-2); Mon, 13 Dec 1993 09:58:54 -0600 Received: by interlock.amoco.com (Internal Mail Agent-1); Mon, 13 Dec 1993 09:58:54 -0600 From: jwagener@amoco.com X-Openmail-Hops: 1 Date: Mon, 13 Dec 93 08:52:10 -0600 Message-Id: In-Reply-To: Subject: HPF library routines in F90? To: Private_User@amoco.com, sc22wg5@dkuug.dk X-Charset: ASCII X-Char-Esc: 29 Item Subject: Message text Thanks Rex. No, I hadn't gotten this, so I appreciate your passing it on. I'll copy it to the Fortran standards community. Jerry > Jerry > I guess you got this, but just wanted to make sure. > Rex > --------- > > Hi, > > We are doing some work on the MasPar and have found that a lot of the > functionality we require is defined in the HPF library (the scatter and > prefix functions). As we are writing all our code in Fortran 90 initially > and then derive a version for the MasPar, I have started writing some of > the HPF library functions in Fortran 90 (also in expectation of HPF > compilers -- "soon"). It really shows up the deficiencies of Fortran 90 for > some functions commonly needed on data parallel machines. > > I'm only working on 1 and 2 dimensional versions of the routines. > > Writing a log n prefix function is easy enough in F90, but the scatter > functions are complicated. E.g. I'm sure there must be some neat way of > writing a copy_scatter function (at least in the 1-dimensional case) using > array subscripts, but I cannot seem to make it work. > > My question then: has anybody else written F90 prototypes of the HPF > library functions? If so I would appreciate any tips. > > Adriaan >