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Fixed #7. 1)Disable the multi-thread and 2) Modified kernel codes to avoid unloop in axpy function when incx==0 or incy==0.

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Xianyi Zhang
2011-02-21 00:24:21 +08:00
parent 109b86d00e
commit 0cfd29a819
6 changed files with 72 additions and 0 deletions
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5
interface/axpy.c
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@@ -81,6 +81,11 @@ void CNAME(blasint n, FLOAT alpha, FLOAT *x, blasint incx, FLOAT *y, blasint inc
#ifdef SMP
nthreads = num_cpu_avail(1);
//disable multi-thread when incx==0 or incy==0
//In that case, the threads would be dependent.
if (incx == 0 || incy == 0)
nthreads = 1;
if (nthreads == 1) {
#endif

5
interface/zaxpy.c
View File

@@ -83,6 +83,11 @@ void CNAME(blasint n, FLOAT *ALPHA, FLOAT *x, blasint incx, FLOAT *y, blasint in
#ifdef SMP
nthreads = num_cpu_avail(1);
//disable multi-thread when incx==0 or incy==0
//In that case, the threads would be dependent.
if (incx == 0 || incy == 0)
nthreads = 1;
if (nthreads == 1) {
#endif