From: Frank Mahler Newsgroups: comp.parallel.mpi Subject: Re: mpich, gcc-2.7.2.3, linux-2.0.35 uncompilable... Date: Wed, 14 Oct 1998 11:21:30 +0200 Organization: see if I'm online: http://champ.tci.uni-hannover.de/ Message-Id: <36246D1A.1D33010B@rrzn-user.uni-hannover.de> References: <361DF876.788A3B31@rrzn-user.uni-hannover.de> <6vvuiq$ua8$1@nnrp1.dejanews.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit don_schad@my-dejanews.com wrote: > > In article <361DF876.788A3B31@rrzn-user.uni-hannover.de>, > Frank Mahler wrote: > > Hi *.mpi :-) > > > > I desperately tried to compile mpich-1.1.1 with gcc-2.7.2.3 on my > > linux-2.0.35 box. At home I successfully completed using gcc-2.7.0 and > > linux-2.1.115, but at work all went wrong: > > > > I did ./configure -f90nag ; make and all gets well, until it comes to > > "make linktest": > > I have succesfully compiled mpi w/ the 2.0.35/gcc-2.7.2.3 setup (at > least the C part, I still can't get the nag f95 compiler to work). > > Try doing the compilation with -L followed by directory where the > mpi libraries are located (e.g. -L/home/mahler/tmp/mpich/lib[LINUX/ch_p4]). > Also try mpicc -echo -c to see exactly what it is trying > to link to. > > If that doesn't work (or perhaps if it does) check for hard-wired > paths in mpicc. I seem to recall having to change one or two. Thanks for your hints, at least it's working now! BUT: I DID NOT CHANGE A THING... What I did was deleting the config.status (or only the .log?) and rerun ./configure. Now it compiled and worked (at least the examples). > ps - please let me know if you get the f90 to work. You man f95? Ok. As far as I understand it, configure finds out, how the FORTRAN compiler generates the names for subroutines and functions and then sets the preprocessor flags for mpich compilation to UNDERSCORE, DOUBLEUNDERSCORE or something else... Unfortunately this means, 1st: patching configure to have an option -f95nag and try to see, if the automatic mechanism works for f95 as well, 2nd: rerun configure and make an mpich that handles f95 correctly... OR use the ./configure -fortnames=DOUBLEUNDERSCORE option to force mpich to use 2 underscores at the end of the mpi subroutines... The disadvantage left is, that you'll need TWO versions of mpich, one for f90 and one for f95... All you CAN do is decide once, which (FORTRAN-) compiler you'll use in future and then create a correct mpich installation. Unfortunately the other compiler won't do any mpi since then... HTH... ...Frank