[mvapich-discuss] Problem building MVAPICH-0.9.9 with Intel icc compiler

[Eric Schnepp]

Shaun Rowland wrote:
> Eric Schnepp wrote:
>> Hello,
>>  We are having trouble building MVAPICH-0.9.9 with the Intel icc
>> compiler. It appears that when using "icc" the C++ MVAPICH libraries are
>> failing to build properly.  However if I build it with "g++" instead,
>> everything builds properly. We are using the version of the MVAPICH
>> source code that came with OFED-1.2, mvapich-0.9.9-1326 and building it
>> on RHELAS4.  Any ideas would be greatly appreciated.
>>
>> Thank you for your assistance,
>> Eric
>>
>> # icc -V
>> Intel(R) C Compiler for Intel(R) EM64T-based applications, Version
>> 9.1    Build 20060707 Package ID: l_cc_c_9.1.042
>>
>> We are running "make.mvapich.gen2" with the following modifications:
>>
>> IBHOME=${IBHOME:-/usr}
>> IBHOME_LIB=${IBHOME_LIB:-/usr/lib64}
>> PREFIX=${PREFIX:-/opt/mvapich/0.9.9-1326_single_rail_intel_9.1}
>> export CC=${CC:-icc}
>> export CXX=${CXX:-icc}
>> export F77=${F77:-ifort}
>> export F90=${F90:-ifort}
>
> For our Intel compiler testing, we set CXX to icpc. I am not sure what
> effect using icc will have here. If you try icpc for CXX, does it build?
> I am thinking that perhaps somewhere in configure, using icc as the C++
> compiler might be causing some issue. I am not sure yet. Could you try
> using icpc and see if the same error happens? The warning message should
> not cause it to fail.
>
Replacing "icc" with "icpc" for the CXX compiler fixed the problem.
Looking at the "icc" man page, I had assumed incorrectly that "icc' was
both the C and the C++ compiler. When all along, we really wanted to set
"icpc" for CXX .

Thank you for your assistance,
Eric