I write three program, one main program pro1.f90,two subroutine pro2.f90 pro3.f90. then I use makefile tocompile it.The following is my makefile
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FC = ifort
OP = -O3
LIB = -L/opt/intel/mkl/8.1/lib/em64t -lmkl -lmkl_lapack -lguide -lpthread
a.out : pro1.f.f90 pro2.o pro3.o
$(FC) $(OP) -o a.out pro1.f90 pro2.o pro3.o $(LIB)
pro2.o : pro2.f
$(FC) $(OP) -c pro2.f90 $(LIB)
pro3.o : pro3.f
$(FC) $(OP) -c pro3.f90 $(LIB)
clean :
rm *.o
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After compiling,I excute ./a.out and get such error:
====================================================
n= 100 particleN 1 L= 0 parL= 5
n= 100 L= 5 parL= 5
end of Pl(theta)
forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image PC Routine Line Source
libifcore.so.5 0000002A959C45FC Unknown Unknown Unknown
libpthread.so.0 000000373870C4F0 Unknown Unknown Unknown
libifcore.so.5 0000002A959C45D5 Unknown Unknown Unknown
libpthread.so.0 000000373870C4F0 Unknown Unknown Unknown
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If I past the program pro2.f90 after the pro1.f90 in the same file,and compiler
ifort O3 -L/opt/intel/mkl/8.1/lib/em64t -lmkl -lmkl_lapack -lguide lpthread pro1.f90 pro3.o
it give me the correct answer.
For this reason, my progam should be right. Is there some problem with my compiler setting or makefile? Thanks!
