Scotch make error?

[booorrit0]

Hello, please see the errors message below when compiling the third party libraries. Thank you.

a - parmetis_dgraph_order.o a - parmetis_dgraph_order_f.o a - parmetis_dgraph_part.o a - parmetis_dgraph_part_f.o /usr/bin/ld: cannot find -lesmumps: No such file or directory collect2: error: ld returned 1 exit status make[5]: [Makefile:47: main_esmumps] Error 1 make[4]: [Makefile:56: scotch] Error 2 make[3]: [Makefile:116: esmumps] Error 2 make[3]: Waiting for unfinished jobs.... ar: u' modifier ignored sinceD' is the default (see U') ar: creating libesmumps.a a - graph_graph.o a - order.o a - order_scotch_graph.o a - dof.o a - symbol.o a - symbol_fax_graph.o a - esmumps.o a - esmumps_f.o a - esmumps_strats.o ar:u' modifier ignored since D' is the default (seeU') ar: creating libesmumps.a a - graph_graph.o a - order.o a - order_scotch_graph.o a - dof.o a - symbol.o a - symbol_fax_graph.o a - esmumps.o a - esmumps_f.o a - esmumps_strats.o make[2]: [CMakeFiles/scotch.dir/build.make:86: scotch/src/scotch-stamp/scotch-build] Error 2 make[1]: [CMakeFiles/Makefile2:750: CMakeFiles/scotch.dir/all] Error 2 make: *** [Makefile:101: all] Error 2

[klevzoff]

This is a known issue of Scotch when building on a high number of cores. We have a workaround in the form of SCOTCH_NUM_PROC CMake flag. You can either put

set(SCOTCH_NUM_PROC 1 CACHE STRING "")

in your host-config file, or pass -DSCOTCH_NUM_PROC=1 on the command line when running the config-build.py script.

[booorrit0]

Thank you, will try this out.

[drmichaeltcvx]

Thanks for the addressing this....

I have been running into this issue as we build TPL using large number of cores on nodes using our automated build-install procedure. I was suspecting that cmake was at times building and linking scotch before dependent libraries and it would fail. My "smart" workaround was to keep trying until the dependencies would happen to build ahead of scotch.