fix sgemm NT perf drop when fix sgemm NT perf drop when lda=ldb=4096 or 5120 and k>lda/4

Author: Timmy

src/library/CMakeLists.txt

@@ -81,6 +81,7 @@ set(SRC_BLAS
 	blas/functor/gcn_dgemmSmallMatrices.cc
 	blas/functor/gcn_sgemmSmallMatrices.cc
 	blas/functor/hawaii_sgemmBranchKernel.cc
+	blas/functor/hawaii_sgemmBig1024Kernel.cc
 )
 
 set(SRC_BLAS_HEADERS
@@ -114,6 +115,7 @@ set(SRC_BLAS_HEADERS
 	blas/functor/include/gcn_dgemmSmallMatrices.h
 	blas/functor/include/gcn_sgemmSmallMatrices.h
 	blas/functor/include/hawaii_sgemmBranchKernel.h
+	blas/functor/include/hawaii_sgemmBig1024Kernel.h
 )
 
 set(SRC_BLAS_GENERIC

src/library/blas/functor/hawaii.cc

@@ -27,6 +27,7 @@
 #include "hawaii_sgemmSplit64_32.h"
 #include "gcn_zgemm.h"
 #include "gpu_dtrsm192.h"
+#include "hawaii_sgemmBig1024Kernel.h"
 
 FunctorSelectorHawaii FunctorSelectorHawaii::instance ;
 
@@ -116,6 +117,22 @@ clblasSgemmFunctor * FunctorSelectorHawaii::select_sgemm_specific(clblasSgemmFun
   //if (functor)
   //  return functor;
 
+  if ((args.lda % 1024 == 0) && (args.ldb % 1024 == 0) && (args.K > args.lda / 4))
+  {
+	  if ((args.lda == args.ldb) && (args.lda >= 4096) && (args.lda <= 8192)) // between 4096 and 8192 for now
+	  {
+		  if (args.lda != 6144)// 6144 is handled by a special case split
+		  {
+			  if (args.M % 128 == 0 && args.N % 128 == 0 && args.K % 64 == 0)
+			  {
+				  functor = clBlashawaiiSgemmBig1024KernelFunctor::provide(args, "Hawaii");
+				  if (functor)
+					  return functor;
+			  }
+		  }
+	  }
+  }
+
   if ((args.M >= 1184 && args.N >= 1184) && (args.M <= 3872 && args.N <= 3872) && (args.M % 64 != 0 && args.N % 64 != 0) && (args.M % 96 != 0 && args.N % 96 != 0) && (args.K % 16 == 0))
   {
 	  //all the mod32 sizes that is not mod64 or mod96 ranging from 1184 to 3872