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coin-or-tools / ThirdParty-Mumps

COIN-OR autotools harness to build Mumps
Eclipse Public License 1.0
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single precision #5

Closed pqy1010 closed 3 years ago

pqy1010 commented 3 years ago

hi @svigerske i am trying to use single precision floats for my project ,and i have read Single precision use #403 but now i am stuck at build ThirdParty-Mumps to single precision version, and i can't find good answer for this question , i don't know if their is any other good way to build ThirdParty-Mumps with single precision floats ,so i have to ask for your help.

i replaced all "dmumps" with "smumps" in MakeFile.in file when build ThirdParty-Mumps ,and it's looks like build success. but when i build my project it's failed with information "/usr/bin/ld: /usr/local/lib/libipopt.so: undefined reference to `smumps_c' ",so ,i guess there is something wrong when build ThirdParty-Mumps with single precision floats.

svigerske commented 3 years ago

MUMPS_ARITH needs to be defined to MUMPS_ARITH_s instead of MUMPS_ARITH_d to get smumps_c, I believe.

I never tried single-precision with MUMPS 4.10. Note that branch mumps5 of ThirdParty-Mumps is setup for building a single-precision version of Mumps.

pqy1010 commented 3 years ago

mumps5 is good, It was build success,Thank you very much.