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pthreads: prefer `-pthread` during linking

This commit is contained in:
Christoph Conrads 2017-06-07 19:47:39 -04:00
parent 8f0d6c06a9
commit 6cc9e5683e
5 changed files with 16 additions and 16 deletions
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2
Makefile.system
View File

@ -306,7 +306,7 @@ ifneq ($(OSNAME), CYGWIN_NT)
ifneq ($(OSNAME), Interix)
ifneq ($(OSNAME), Android)
ifdef SMP
EXTRALIB += -lpthread
EXTRALIB += -pthread
endif
endif
endif

8
Makefile.x86
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@ -6,9 +6,9 @@ ARFLAGS = -m x86
endif
ifndef SMP
LIBMKL = -L$(MKLPATH)/32 -Wl,-rpath,$(MKLPATH)/32 -lmkl_intel -lmkl_sequential -lmkl_core -lguide -lpthread -lm
LIBMKL = -L$(MKLPATH)/32 -Wl,-rpath,$(MKLPATH)/32 -lmkl_intel -lmkl_sequential -lmkl_core -lguide -pthread -lm
else
LIBMKL = -L$(MKLPATH)/32 -Wl,-rpath,$(MKLPATH)/32 -lmkl_intel -lmkl_intel_thread -lmkl_core -lguide -lpthread -lm
LIBMKL = -L$(MKLPATH)/32 -Wl,-rpath,$(MKLPATH)/32 -lmkl_intel -lmkl_intel_thread -lmkl_core -lguide -pthread -lm
endif
# LIBMKL = -L$(MKLPATH)/32 -lmkl_lapack -lmkl_ia32 -lguide -lpthread -lm
@ -16,7 +16,7 @@ endif
ifndef SMP
LIBATLAS = -L$(ATLAS) -lf77blas -latlas -lg2c -lm
else
LIBATLAS = -L$(ATLAS) -lptf77blas -latlas -lpthread -lg2c -lm
LIBATLAS = -L$(ATLAS) -lptf77blas -latlas -pthread -lg2c -lm
endif
ifeq ($(COMPILER_F77), g77)
@ -52,5 +52,5 @@ LIBVECLIB = /System/Library/Frameworks/vecLib.framework/Versions/Current/vecLib
ifndef SMP
LIBATLAS = -L$(ATLASPATH)/32 -lcblas -lf77blas -latlas -lm
else
LIBATLAS = -L$(ATLASPATH)/32 -lptf77blas -lptatlas -lpthread -lm
LIBATLAS = -L$(ATLASPATH)/32 -lptf77blas -lptatlas -pthread -lm
endif

12
Makefile.x86_64
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@ -20,9 +20,9 @@ LIBMKL = -L$(MKLPATH)/em64t -Wl,-rpath,$(MKLPATH)/em64t -lmkl_intel_lp64 -lmkl_
endif
else
ifndef SMP
LIBMKL = -L$(MKLPATH)/em64t -Wl,-rpath,$(MKLPATH)/em64t -Wl,--start-group -lmkl_intel_lp64 -lmkl_sequential -lmkl_core -Wl,--end-group -lguide -lpthread -lm
LIBMKL = -L$(MKLPATH)/em64t -Wl,-rpath,$(MKLPATH)/em64t -Wl,--start-group -lmkl_intel_lp64 -lmkl_sequential -lmkl_core -Wl,--end-group -lguide -pthread -lm
else
LIBMKL = -L$(MKLPATH)/em64t -Wl,-rpath,$(MKLPATH)/em64t -Wl,--start-group -lmkl_intel_lp64 -lmkl_intel_thread -lmkl_core -Wl,--end-group -lguide -lpthread -lm
LIBMKL = -L$(MKLPATH)/em64t -Wl,-rpath,$(MKLPATH)/em64t -Wl,--start-group -lmkl_intel_lp64 -lmkl_intel_thread -lmkl_core -Wl,--end-group -lguide -pthread -lm
endif
endif
@ -30,10 +30,10 @@ endif
ifndef SMP
LIBATLAS = -L$(ATLASPATH)64 -llapack -lcblas -lf77blas -latlas -lm
else
LIBATLAS = -L$(ATLASPATH)64 -llapack -lptcblas -lptf77blas -latlas -lpthread -lm
LIBATLAS = -L$(ATLASPATH)64 -llapack -lptcblas -lptf77blas -latlas -pthread -lm
endif
LIBFLAME = -L$(FLAMEPATH) -llapack2flame -lflame $(TOPDIR)/$(LIBNAME) -lgfortran -lpthread -lm
LIBFLAME = -L$(FLAMEPATH) -llapack2flame -lflame $(TOPDIR)/$(LIBNAME) -lgfortran -pthread -lm
ifeq ($(F_COMPILER), g77)
@ -50,9 +50,9 @@ endif
ifeq ($(F_COMPILER), INTEL)
ifndef SMP
LIBACML = -L$(ACMLPATH)/ifort64/lib -Wl,-rpath,$(ACMLPATH)/ifort64/lib -lacml -lacml_mv -lifcoremt_pic -lirc -lm -lpthread -ldl
LIBACML = -L$(ACMLPATH)/ifort64/lib -Wl,-rpath,$(ACMLPATH)/ifort64/lib -lacml -lacml_mv -lifcoremt_pic -lirc -lm -pthread -ldl
else
LIBACML = -L$(ACMLPATH)/ifort64_mp/lib -Wl,-rpath,$(ACMLPATH)/ifort64_mp/lib -lacml_mp -lacml_mv -lifcoremt_pic -liomp5 -lirc -lm -lpthread -ldl
LIBACML = -L$(ACMLPATH)/ifort64_mp/lib -Wl,-rpath,$(ACMLPATH)/ifort64_mp/lib -lacml_mp -lacml_mv -lifcoremt_pic -liomp5 -lirc -lm -pthread -ldl
endif
endif

8
USAGE.md
View File

@ -52,7 +52,7 @@ in `Makefile.rule`.
`gcc -o test test.c -I /your_path/OpenBLAS/include/ -L/your_path/OpenBLAS/lib -lopenblas`
If the library is multithreaded, please add `-lpthread`. If the library
If the library is multithreaded, please add `-pthread`. If the library
contains LAPACK functions, please add `-lgfortran` or other Fortran libs.
* Link with static library
@ -66,10 +66,10 @@ default), custom programs statically linked against `libopenblas.a` should also
link with the pthread library e.g.:
```
gcc -static -I/opt/OpenBLAS/include -L/opt/OpenBLAS/lib -o my_program my_program.c -lopenblas -lpthread
gcc -static -I/opt/OpenBLAS/include -L/opt/OpenBLAS/lib -o my_program my_program.c -lopenblas -pthread
```
Failing to add the `-lpthread` flag will cause errors such as:
Failing to add the `-pthread` flag will cause errors such as:
```
/opt/OpenBLAS/libopenblas.a(memory.o): In function `_touch_memory':
@ -99,7 +99,7 @@ void main()
printf("\n");
}
```
`gcc -o test_cblas_open test_cblas_dgemm.c -I /your_path/OpenBLAS/include/ -L/your_path/OpenBLAS/lib -lopenblas -lpthread -lgfortran`
`gcc -o test_cblas_open test_cblas_dgemm.c -I /your_path/OpenBLAS/include/ -L/your_path/OpenBLAS/lib -lopenblas -pthread -lgfortran`
#### Call BLAS Fortran interface

2
cmake/os.cmake
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@ -79,7 +79,7 @@ endif ()
if (NOT ${CMAKE_SYSTEM_NAME} STREQUAL "Windows" AND NOT ${CMAKE_SYSTEM_NAME} STREQUAL "Interix")
if (SMP)
set(EXTRALIB "${EXTRALIB} -lpthread")
set(EXTRALIB "${EXTRALIB} -pthread")
endif ()
endif ()