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Fixed a few more unnecessary calls to num_cpu_avail.

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I don't have as many benchmarks for these as for gemm, but it should still
make a difference for small matrices.
This commit is contained in:
Craig Donner
2018-06-11 10:13:09 +01:00
parent 3313e4b946
commit c2545b0fd6
18 changed files with 59 additions and 92 deletions
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15
kernel/x86_64/ddot.c
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@@ -29,13 +29,13 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "common.h"
#if defined(BULLDOZER)
#if defined(BULLDOZER)
#include "ddot_microk_bulldozer-2.c"
#elif defined(STEAMROLLER) || defined(EXCAVATOR)
#include "ddot_microk_steamroller-2.c"
#elif defined(PILEDRIVER)
#include "ddot_microk_piledriver-2.c"
#elif defined(NEHALEM)
#elif defined(NEHALEM)
#include "ddot_microk_nehalem-2.c"
#elif defined(HASWELL) || defined(ZEN) || defined (SKYLAKEX)
#include "ddot_microk_haswell-2.c"
@@ -110,7 +110,7 @@ static FLOAT dot_compute(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLON
FLOAT temp1 = 0.0;
FLOAT temp2 = 0.0;
BLASLONG n1 = n & -4;
BLASLONG n1 = n & -4;
while(i < n1)
{
@@ -169,13 +169,10 @@ FLOAT CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y)
FLOAT dot = 0.0;
#if defined(SMP)
nthreads = num_cpu_avail(1);
if (inc_x == 0 || inc_y == 0)
nthreads = 1;
if (n <= 10000)
if (inc_x == 0 || inc_y == 0 || n <= 10000)
nthreads = 1;
else
nthreads = num_cpu_avail(1);
if (nthreads == 1) {
dot = dot_compute(n, x, inc_x, y, inc_y);