begin work on targeting dot_q5_K_q8_K.

Makefile

@@ -292,7 +292,7 @@ ifeq "${K1OM}" ""
 	#MK_CFLAGS   += -mssse3
 	#MK_CXXFLAGS += -mssse3
 else
-	OBJS         += ggml-phi-knc.o
+	OBJS         += ggml-phi-knc.o ggml-phi-knc-dot_q5_K_q8_K.o
 	MK_CFLAGS    += -march=knc -mtune=knc
 endif
 

ggml-phi-knc-dot_q5_K_q8_K.c

@@ -0,0 +1,49 @@
+
+/* A forward declaration, to keep GCC happy. */
+void ggml_vec_dot_q5_K_q8_K(int n, float * restrict s, size_t bs, const void * restrict vx, size_t bx, const void * restrict vy,  size_t by, int nrc);
+
+void ggml_vec_dot_q5_K_q8_K(int n, float * restrict s, size_t bs, const void * restrict vx, size_t bx, const void * restrict vy,  size_t by, int nrc) {
+
+  const block_q5_K * restrict x = vx;
+  const block_q8_K * restrict y = vy;
+  
+  const int nb = n / QK_K;
+  
+  static const uint32_t kmask1 = 0x3f3f3f3f;
+  static const uint32_t kmask2 = 0x0f0f0f0f;
+  static const uint32_t kmask3 = 0x03030303;
+  
+  uint32_t utmp[4];
+    int8_t aux8[QK_K];
+    int16_t aux16[16];
+    float   sums [8];
+    memset(sums, 0, 8*sizeof(float));
+
+    float sumf = 0;
+    for (int i = 0; i < nb; ++i) {
+        const uint8_t * restrict q4 = x[i].qs;
+        const uint8_t * restrict hm = x[i].qh;
+        const  int8_t * restrict q8 = y[i].qs;
+        int8_t * restrict a = aux8;
+        for (int l = 0; l < 32; ++l) {
+            a[l+ 0] = q4[l] & 0xF;
+            a[l+32] = q4[l]  >> 4;
+        }
+        for (int is = 0; is < 8; ++is) {
+            uint8_t m = 1 << is;
+            for (int l = 0; l < 8; ++l) a[8*is + l] -= (hm[l] & m ? 0 : 16);
+        }
+
+        const float d = y[i].d * GGML_FP16_TO_FP32(x[i].d);
+        const int8_t * restrict sc = x[i].scales;
+
+        for (int j = 0; j < QK_K/16; ++j) {
+            const float dl = d * sc[j];
+            for (int l = 0; l < 16; ++l) aux16[l] = q8[l] * a[l];
+            for (int l = 0; l <  8; ++l) sums[l] += dl * (aux16[l] + aux16[8+l]);
+            q8 += 16; a += 16;
+        }
+    }
+    for (int l = 0; l < 8; ++l) sumf += sums[l];
+    *s = sumf;
+}

ggml-phi-knc-dot_q5_K_q8_K.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#include "ggml.h"
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+/* A forward declaration, to keep GCC happy. */
+void ggml_vec_dot_q5_K_q8_K(int n, float * restrict s, size_t bs, const void * restrict vx, size_t bx, const void * restrict vy,  size_t by, int nrc);
+
+#ifdef  __cplusplus
+}
+#endif