[distcc] Re: Distcc and mpiCC

[Eric Bechet]

Attached to this message is a short patch that deals with mpich's mpicc 
scripts to allow distcc to deal with mpicc. Apply it in the bin 
directory of mpich : example /usr/local/mpich-gm-gnu/bin/


eric


Eric Bechet wrote:

> Hello,
>
> I tried to use distcc to perform a distributed build of a parallelized 
> c++ code (via mpiCC). However, every object file generated with the 
> distributed compilation is of length 0 (no errors are generated by 
> distcc). The code compiles  fine with distcc and g++ . In addition, it 
> also compiles fine with mpiCC directly invoked as a "serial" compiler. 
> The problem seem to be interactions between mpiCC and distcc.
> Did someone actually manage to use mpiCC with distcc ? Here are some 
> relevant data :
>
> 1- using distcc-2.18.3, compiled from scratch
> 2- CENTOS (same as RHEL4) - kernel 2.6.9-5.0.5.ELsmp - x86_64 
> architecture. gcc version is  3.4.3 20041212 (Red Hat 3.4.3-9.EL4), 
> and mpiCC coming from mpichgm-1.2.6..14a
> 3- as stated, i'm trying to build a home made library which otherwise 
> works well (distcc with g++ works fine for that library)
> 4-with distcc and mpiCC, compiling a c++ source file leads to a zero 
> length .o file, with no error report. I think the problem lies either 
> in the transmission of the resulting object code (is mpiCC  building 
> "special" object files ?)  or in mpiCC failing to compile without 
> warning.
> 5- command line for one of the source files :
> /usr/local/distcc/bin/distcc /usr/local/mpich-gm-gnu/bin/mpiCC -w 
> -fPIC -g -m64 -Wall   -DDEBUG -DPARALLEL  -D_HAVE_PARMETIS_  
> -DMPICH_SKIP_MPICXX -D_MPIPP_H -D_HAVE_PARMETIS_   
> -I/usr/local/parmetis-gm-gnu/METISLib 
> -I/usr/local/mpich-gm-gnu/include -I/usr/local/mpich-gm-gnu/include  
> -I/usr/local/autopack-gm-gnu -I/usr/local/parmetis-gm-gnu/METISLib 
> -I/usr/local/parmetis-gm-gnu -I/home/admin/develop/Solver/itl  
> -I/home/admin/develop/Solver/mtl  
> -I/home/admin/develop/Trellis/AOMD/include 
> -I/home/admin/develop/Trellis/model/include 
> -I/home/admin/develop/Trellis/Util/include 
> -I/home/admin/develop/Util/Loki/include 
> -I/home/admin/develop/Xext/XextPara/include 
> -I/home/admin/develop/Xfem/Xfem/Xfem/../include  -c 
> Xfem/IntegratorPartitionBoundary.cc -o 
> obj/x86_64_linux-mpich/IntegratorPartitionBoundary.o
>
> I attached a log file
>
> Thanks for your help,
>
> Eric
>
>


-- 
Eric Bechet
Research Associate
Institut GeM, Ecole Centrale de Nantes
1, rue de la Noe, 44321 Nantes Cedex 3, France
(tel/fax) +33 2 40 37 (25 82 / 25 73)

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