探序基因肿瘤研究院 整理
1. 编辑一个test3.c文件，如下
#include <stdio.h>
#include <math.h>
double ddot_(int *,double *,int *,double *,int *);
int main()
{
int N=2, INCX=1, INCY=1;
double X[2]={1.0,1.0};
double Y[2]={2.0,2.0};
double re;
re=ddot_(&N, X, &INCX, Y, &INCY);
printf("the result is:%f\n", re);
return 0;
}
linux命令行运行：
gcc -c test3.c -o test3.o
gcc -o test3 test3.o -lblas -lgfortran
2. test2.c
#include <stdio.h>
#include <lapacke.h>
int main (int argc, const char * argv[])
{
double a[5][3] = {1,1,1,2,3,4,3,5,2,4,2,5,5,4,3};
double b[5][2] = {-10,-3,12,14,14,12,16,16,18,16};
lapack_int info,m,n,lda,ldb,nrhs;
int i,j;
m = 5;
n = 3;
nrhs = 2;
lda = 3;
ldb = 2;
info = LAPACKE_dgels(LAPACK_ROW_MAJOR,'N',m,n,nrhs,*a,lda,*b,ldb);
for(i=0;i<n;i++)
{
for(j=0;j<nrhs;j++)
{
printf("%lf ",b[i][j]);
}
printf("\n");
}
return(info);
}
gcc -c test2.c -o test2.o
gcc test2.c -o test -llapacke -llapack -lcblas -lrefblas -lm -lgfortran
编译遇到的问题：
/usr/bin/ld: /datadisk1/liblocal/libblas.a(dtrsm.o): relocation
R_X86_64_32 against `.rodata' can not be used when making a shared
object; recompile with -fPIC
一般指定库路径就行
