diff --git a/param.h b/param.h
index 79c18f7e2..a2ed09d6f 100644
--- a/param.h
+++ b/param.h
@@ -1815,17 +1815,17 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define ZGEMM_DEFAULT_UNROLL_N  2
 
 #define SGEMM_DEFAULT_P	64
-#define DGEMM_DEFAULT_P	128
+#define DGEMM_DEFAULT_P	64
 #define CGEMM_DEFAULT_P 24
 #define ZGEMM_DEFAULT_P 20
 
 #define SGEMM_DEFAULT_Q 192
-#define DGEMM_DEFAULT_Q 128
+#define DGEMM_DEFAULT_Q 64
 #define CGEMM_DEFAULT_Q 128
 #define ZGEMM_DEFAULT_Q 64
 
 #define SGEMM_DEFAULT_R 512
-#define DGEMM_DEFAULT_R 2048 
+#define DGEMM_DEFAULT_R 512
 #define CGEMM_DEFAULT_R 512
 #define ZGEMM_DEFAULT_R 512