Merge pull request #2580 from martin-frbg/issue2538-3

Increase POWER8 ZGEMM_R and use same R values for POWER9

param.h

@@ -2254,7 +2254,7 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define SGEMM_DEFAULT_R 4096
 #define DGEMM_DEFAULT_R 4096
 #define CGEMM_DEFAULT_R 4096
-#define ZGEMM_DEFAULT_R 512
+#define ZGEMM_DEFAULT_R 4096
 
 #define SYMV_P	 8
 
@@ -2288,6 +2288,11 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define CGEMM_DEFAULT_Q  1026
 #define ZGEMM_DEFAULT_Q 1026
 
+#define SGEMM_DEFAULT_R 4096
+#define DGEMM_DEFAULT_R 4096
+#define CGEMM_DEFAULT_R 4096
+#define ZGEMM_DEFAULT_R 4096
+
 #define SYMV_P	 8
 
 #endif