Yes Jeff, you're right. I found out that it was an autotools issue, I updated autotools, and now mpich builds properly for me, with icc/gcc. The idea to look into autotools came to me from this trac discussion (that was a different issue perhaps, but still): https://trac.mpich.org/projects/mpich/ticket/1840 sg@sg:~/proj$ m4 --version m4 (GNU M4) 1.4.17 sg@sg:~/proj$ automake --version automake (GNU automake) 1.15 sg@sg:~/proj$ autoconf --version autoconf (GNU Autoconf) 2.69 sg@sg:~/proj$ libtool --version libtool (GNU libtool) 2.4.6 Thanks, Sayan On Wed, Oct 21, 2015 at 5:47 PM, Jeff Hammond <[email protected]> wrote:

Since C is ABI compatible, just build MPICH with GCC and like with ICC apps.

FWIW I compile MPICH with Intel 15/16 all the time without issues. But I'll try the latest git version to be sure.

Jeff

On Wednesday, October 21, 2015, Sayan Ghosh <[email protected]> wrote:

...

Thanks Rob, here is the specific part from my mpl config, almost looks like your config:

configure:13058: checking for strncmp configure:13058: icc -std=gnu99 -o conftest conftest.c >&5 configure:13058: $? = 0 configure:13058: result: yes configure:13070: checking whether strncmp needs a declaration configure:13089: icc -std=gnu99 -c conftest.c >&5 configure:13089: $? = 0 configure:13097: result: no

I get build errors even with GCC 4.9 and clang with older versions of mpich, so this is definitely a system issue as you mentioned.

sg@sg:~/sources/mpich-3.1.4/build$ cat /etc/debian_version 8.2 sg@sg:~/sources/mpich-3.1.4/build$ uname -a Linux sg 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt11-1+deb8u5 (2015-10-09) x86_64 GNU/Linux

On Wed, Oct 21, 2015 at 7:39 AM, Rob Latham <[email protected]> wrote:

...

The warnings are intel's preprocessor being a bit pickier than gnu's cpp

the errors, though, are indeed odd. I will eat my sock if strncmp really truly is not on your system; far more likely the strncmp test failed for some unrelated reason.

Look at your src/mpl/config.log. On my system, the (successful) check for strncmp looks like this:

configure:12723: checking for strncmp configure:12723: ccache gcc -o conftest -Wall -g -Wno-unused-label -fstack-usage -fPIC -ggdb3 -I /home/robl/work/soft/lustre/include conftest.c >&5 conftest.c:65:6: warning: conflicting types for built-in function 'strncmp' char strncmp (); ^ configure:12723: $? = 0 configure:12723: result: yes configure:12734: checking whether strncmp needs a declaration configure:12752: ccache gcc -c -Wall -g -Wno-unused-label -fstack-usage -fPIC -ggdb3 -I /home/robl/work/soft/lustre/include conftest.c >&5 configure:12752: $? = 0 configure:12759: result: no

Does yours look like this?

==rob

Hi,

...

I am getting an error while trying to compile the latest mpich (from the git repo) with Intel 15.0.1 compiler...excerpt of the error:

In file included from ../../.././src/mpl/include/mpl.h(10), from ../../.././src/mpl/src/mplstr.c(7): ./include/mplconfig.h(238): warning #14: extra text after expected end of preprocessing directive #ifndef _mpl_ ^

In file included from ../../.././src/mpl/include/mpl.h(10), from ../../.././src/mpl/src/mplstr.c(7): ./include/mplconfig.h(239): warning #2217: white space is required between the macro name "_mpl_" and its replacement text #define _mpl_ ^

In file included from ../../.././src/mpl/include/mpl.h(111), from ../../.././src/mpl/src/mplstr.c(7): ../../.././src/mpl/include/mplstr.h(48): error: #error directive: "strncmp is required" #error "strncmp is required" ^

../../.././src/mpl/src/mplstr.c(41): warning #266: function "isdigit" declared implicitly if (isdigit(nc)) { ^

Internal error: null pointer

Please suggest.

-- Regards, Sayan

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-- Rob Latham Mathematics and Computer Science Division Argonne National Lab, IL USA _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss

-- Regards, Sayan

-- Jeff Hammond [email protected] http://jeffhammond.github.io/

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-- Regards, Sayan _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss