[distcc] Distcc and mpiCC

Eric Bechet eric.bechet at ec-nantes.fr
Wed Jun 8 16:07:44 GMT 2005


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 
-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/Xfem/Xfem/Xfem/../include  -c 
Xfem/IntegratorPartitionBoundary.cc -o 

I attached a log file

Thanks for your help,


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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