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Re: 20040316: compilation options for NetCDF on AMD Opteron Linux systems

>To: address@hidden
>From: address@hidden
>Subject: compilation options for NetCDF on AMD Opteron Linux systems
>Organization: MIT
>Keywords: 200403162251.i2GMpurV013103 netCDF 3.5.1 AMD Opteron Linux 
>environment variables

Hi Dr. Evangelinos,

> These compilations successfully completed the bundled test for NetCDF
> 3.5.1 on an Opteron system with SuSE Enterprise Server 8, gcc 3.3.1 and
> PGI compiler V. 5.1-3.
> 
> * 64bit, PGI F77 & C++ compilers, GCC for C, pgf90 will not work for F90
> env CC=gcc CFLAGS="-O3 -funroll-loops -march=k8 -m64 -mfpmath=sse -msse2
> -ffast-math -mcmodel=medium" FC=pgf77 FFLAGS="-fastsse -tp k8-64 -Minline
> -Mvect=recog,transform,assoc,cachesize:1048576 -mcmodel=medium" CXX=pgCC
> CXXFLAGS="-fastsse -tp k8-64 -Minline
> -Mvect=recog,transform,assoc,cachesize:1048576 -mcmodel=medium"
> CPPFLAGS="-DNDEBUG -DpgiFortran -D_FILE_OFFSET_BITS=64
> -D_LARGEFILE_SOURCE" ./configure
> 
> This one works but the tests complain:
> ./nf_test: Symbol `exit' causes overflow in R_X86_64_PC32 relocation
> ./nf_test: Symbol `exit' causes overflow in R_X86_64_PC32 relocation
> ./ftest: Symbol `exit' causes overflow in R_X86_64_PC32 relocation
> ./ftest: Symbol `exit' causes overflow in R_X86_64_PC32 relocation
> ./nctst: Symbol `exit' causes overflow in R_X86_64_PC32 relocation
> Compiling without -mcmodel=medium does away with these warnings (and
> should provide a small speedup) at the expense of available address space.
> 
> * 32bit, PGI F77 & C++ compilers, GCC for C, pgf90 will not work for F90
> env CC=gcc CFLAGS="-O2 -funroll-loops -march=k8 -m32 -mfpmath=sse -msse2
> -ffast-math" FC=pgf77 FFLAGS="-fastsse -tp k8-32 -Minline
> -Mvect=recog,transform,assoc,cachesize:1048576" CXX=pgCC
> CXXFLAGS="-fastsse -tp k8-32 -Minline
> -Mvect=recog,transform,assoc,cachesize:1048576" CPPFLAGS="-DNDEBUG
> -DpgiFortran -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE" ./configure
> 
> * 64bit, all GCC, no F90
> env CC=gcc CFLAGS="-O3 -funroll-loops -march=k8 -m64 -mfpmath=sse -msse2
> -ffast-math -mcmodel=medium" FC=g77 FFLAGS="-O3 -funroll-loops -march=k8
> -m64 -mfpmath=sse -msse2 -ffast-math -mcmodel=medium -Wno-globals" CXX=g++
> CXXFLAGS="-O3 -funroll-loops -march=k8 -m64 -mfpmath=sse -msse2
> -ffast-math -mcmodel=medium" CPPFLAGS="-DNDEBUG -Df2cFortran
> -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE" ./configure
> 
> * 32bit, all GCC, no F90
> env CC=gcc CFLAGS="-O2 -funroll-loops -march=k8 -m32 -mfpmath=sse -msse2
> -ffast-math" FC=g77 FFLAGS="-O2 -funroll-loops -march=k8 -m32 -mfpmath=sse
> -msse2 -ffast-math -Wno-globals" CXX=g++ CXXFLAGS="-O2 -funroll-loops
> -march=k8 -m32 -mfpmath=sse -msse2 -ffast-math" CPPFLAGS="-DNDEBUG
> -Df2cFortran -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE" ./configure

Thanks for contributing these.  I've added them to

  http://www.unidata.ucar.edu/packages/netcdf/other-builds.html

--Russ