generate_matrix.py: Default to range, fp32

tests/kernel/tensor/generate_matrix.py

@@ -46,7 +46,7 @@ def pack_fp16_by_row(array):
 if __name__ == "__main__":
     M, N, K = parse_mnk()
 
-    rand = True
+    rand = False
     if not rand:
         A_array = np.arange(M * K).reshape([M, K])
         B_array = np.arange(K * N).reshape([K, N])
@@ -77,7 +77,7 @@ if __name__ == "__main__":
 
     np.savez("abc", A_array=A_array, B_array=B_array, C_array=C_array)
 
-    fp16 = True
+    fp16 = False
     if fp16:
         A_packed = pack_fp16_by_row(A_array)
         AT_packed = A_packed.transpose([1, 0, 2])