From: jiahaipeng <jiahaipeng95@gmail.com>
Date: Sun, 11 Dec 2016 09:02:18 +0000 (+0000)
Subject: modify the blas_l1_thread.c for support multi-threded for L1 fuction with return... 
X-Git-Tag: upstream/0.2.20^2~81
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1aa1e6cb54ced625915bc7b8be59ae3f55f369e6;p=platform%2Fupstream%2Fopenblas.git

modify the blas_l1_thread.c for support multi-threded for L1 fuction with return value
---

diff --git a/driver/others/blas_l1_thread.c b/driver/others/blas_l1_thread.c
index 83fc2688..e405c746 100644
--- a/driver/others/blas_l1_thread.c
+++ b/driver/others/blas_l1_thread.c
@@ -110,3 +110,74 @@ int blas_level1_thread(int mode, BLASLONG m, BLASLONG n, BLASLONG k, void *alpha
 
   return 0;
 }
+
+int blas_level1_thread_with_return_value(int mode, BLASLONG m, BLASLONG n, BLASLONG k, void *alpha,
+		       void *a, BLASLONG lda,
+		       void *b, BLASLONG ldb,
+		       void *c, BLASLONG ldc, int (*function)(), int nthreads){
+
+  blas_queue_t queue[MAX_CPU_NUMBER];
+  blas_arg_t   args [MAX_CPU_NUMBER];
+
+  BLASLONG i, width, astride, bstride;
+  int num_cpu, calc_type;
+
+  calc_type = (mode & BLAS_PREC) + ((mode & BLAS_COMPLEX) != 0) + 2;
+
+  mode |= BLAS_LEGACY;
+
+  for (i = 0; i < nthreads; i++) blas_queue_init(&queue[i]);
+
+  num_cpu = 0;
+  i = m;
+
+  while (i > 0){
+
+    /* Adjust Parameters */
+    width  = blas_quickdivide(i + nthreads - num_cpu - 1,
+			      nthreads - num_cpu);
+
+    i -= width;
+    if (i < 0) width = width + i;
+
+    astride = width * lda;
+
+    if (!(mode & BLAS_TRANSB_T)) {
+      bstride = width * ldb;
+    } else {
+      bstride = width;
+    }
+
+    astride <<= calc_type;
+    bstride <<= calc_type;
+
+    args[num_cpu].m = width;
+    args[num_cpu].n = n;
+    args[num_cpu].k = k;
+    args[num_cpu].a = (void *)a;
+    args[num_cpu].b = (void *)b;
+    args[num_cpu].c = (void *)((char *)c + num_cpu * sizeof(double)*2);
+    args[num_cpu].lda = lda;
+    args[num_cpu].ldb = ldb;
+    args[num_cpu].ldc = ldc;
+    args[num_cpu].alpha = alpha;
+
+    queue[num_cpu].mode    = mode;
+    queue[num_cpu].routine = function;
+    queue[num_cpu].args    = &args[num_cpu];
+    queue[num_cpu].next    = &queue[num_cpu + 1];
+
+    a = (void *)((BLASULONG)a + astride);
+    b = (void *)((BLASULONG)b + bstride);
+
+    num_cpu ++;
+  }
+
+  if (num_cpu) {
+    queue[num_cpu - 1].next = NULL;
+
+    exec_blas(num_cpu, queue);
+  }
+
+  return 0;
+}