Path: utzoo!attcan!uunet!mcvax!dik From: dik@cwi.nl (Dik T. Winter) Newsgroups: comp.arch Subject: Re: Vectorising conditional code. Message-ID: <7584@boring.cwi.nl> Date: 16 Jul 88 15:12:20 GMT References: <893@garth.UUCP> <28200176@urbsdc> <963@garth.UUCP> Organization: CWI, Amsterdam Lines: 17 In article <963@garth.UUCP> smryan@garth.UUCP (Steven Ryan) writes: > > How good are available > >compilers at vectorizing complex arithmetic? Do people short > >shrift complex because most "important" programs have already > >been translated to use reals? Is this a self-fulfilling prophecy? > > On the 205, complex is vectorised but into library calls. Vector complex > operators require multiple scratch vectors and the code generator is > only set up to define one scratch vector per operator. (Modular code? > We don't need no steenking modular code.) And we might want some better library routines. Complex on the 205 is much slower than it needs to be. -- dik t. winter, cwi, amsterdam, nederland INTERNET : dik@cwi.nl BITNET/EARN: dik@mcvax