Greetings
I am planning on having a go at compiling gsl The machine has these:-
---cpu -amd64 2 cores
---os -64-bit cblfs linux with gcc-4.4.2
---blas:- atlas3.9.32 and lapack-3.2.2
i did a trial run compiling gls-1.14. I noticed lines like these
"libtool: compile: gcc -DHAVE_CONFIG_H -I. -I.. -I.. -O3 - ........
-MT sasum.lo -MD -MP -MF .deps/sasum.Tpo -c sasum.c " in the compiler
output.
I have compiled atlas3.9.(23-32) and the corresponding output from atlas
for cblas seems to have more compiler optimisation
see below for the same file "sasum.c" in the cblas part of the application.
-DAdd_
-DF77_INTEGER=int
-DStringSunStyle
-DATL_OS_Linux
-DATL_ARCH_AMD64K10h
-DATL_CPUMHZ=2800
-DATL_SSE3
-DATL_SSE2
-DATL_SSE1
-DATL_3DNow
-DATL_USE64BITS
-DATL_GAS_x8664
-DPentiumCPS=2900
-DATL_DYLIBS
-DATL_FULL_LAPACK
-DATL_NCPU=2
-fomit-frame-pointer
-mfpmath=sse
-msse3
-O2
-falign-loops=32
-fPIC -m64 -fPIC -DATL_USEPTHREADS
I would like to know
a) if there ae recommended cflags for compiling gsl(-1.14)
b) recommended procedures if any for linking to lapack and atlas libraries
c) recommended procedures of linking to blas and threaded blas (I have
libcblas/libptcblas and libf77blas/libptf77blas.
thanks in advance.
sincerely
lux-integ
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