added optimized cgemm-kernel for SANDYBRIDGE

kernel/x86_64/KERNEL.SANDYBRIDGE

@@ -21,11 +21,11 @@ DGEMMITCOPYOBJ =  dgemm_itcopy$(TSUFFIX).$(SUFFIX)
 DGEMMONCOPYOBJ =  dgemm_oncopy$(TSUFFIX).$(SUFFIX)
 DGEMMOTCOPYOBJ =  dgemm_otcopy$(TSUFFIX).$(SUFFIX)
 
-CGEMMKERNEL    =  zgemm_kernel_2x4_nehalem.S
-CGEMMINCOPY    =  zgemm_ncopy_2.S
-CGEMMITCOPY    =  zgemm_tcopy_2.S
-CGEMMONCOPY    =  ../generic/zgemm_ncopy_4.c
-CGEMMOTCOPY    =  ../generic/zgemm_tcopy_4.c
+CGEMMKERNEL    =  cgemm_kernel_8x2_sandy.S
+CGEMMINCOPY    =  ../generic/zgemm_ncopy_8.c
+CGEMMITCOPY    =  ../generic/zgemm_tcopy_8.c
+CGEMMONCOPY    =  ../generic/zgemm_ncopy_2.c
+CGEMMOTCOPY    =  ../generic/zgemm_tcopy_2.c
 CGEMMINCOPYOBJ =  cgemm_incopy$(TSUFFIX).$(SUFFIX)
 CGEMMITCOPYOBJ =  cgemm_itcopy$(TSUFFIX).$(SUFFIX)
 CGEMMONCOPYOBJ =  cgemm_oncopy$(TSUFFIX).$(SUFFIX)

param.h

@@ -1111,14 +1111,14 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define SGEMM_DEFAULT_UNROLL_M 16
 #define DGEMM_DEFAULT_UNROLL_M 8
 #define QGEMM_DEFAULT_UNROLL_M 2
-#define CGEMM_DEFAULT_UNROLL_M 2
+#define CGEMM_DEFAULT_UNROLL_M 8
 #define ZGEMM_DEFAULT_UNROLL_M 4
 #define XGEMM_DEFAULT_UNROLL_M 1
 
 #define SGEMM_DEFAULT_UNROLL_N 4
 #define DGEMM_DEFAULT_UNROLL_N 4
 #define QGEMM_DEFAULT_UNROLL_N 2
-#define CGEMM_DEFAULT_UNROLL_N 4
+#define CGEMM_DEFAULT_UNROLL_N 2
 #define ZGEMM_DEFAULT_UNROLL_N 4
 #define XGEMM_DEFAULT_UNROLL_N 1
 #endif
@@ -1134,7 +1134,7 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define QGEMM_DEFAULT_P 504
 #define QGEMM_DEFAULT_R qgemm_r
 
-#define CGEMM_DEFAULT_P 128
+#define CGEMM_DEFAULT_P 384
 //#define CGEMM_DEFAULT_R cgemm_r
 #define CGEMM_DEFAULT_R 1024
 
@@ -1148,7 +1148,7 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define SGEMM_DEFAULT_Q 384
 #define DGEMM_DEFAULT_Q 256
 #define QGEMM_DEFAULT_Q 128
-#define CGEMM_DEFAULT_Q 256 
+#define CGEMM_DEFAULT_Q 192
 #define ZGEMM_DEFAULT_Q 192
 #define XGEMM_DEFAULT_Q 128