Merge branch 'ggerganov:master' into hipblas

Author: SlyEcho

SHA256SUMS

@@ -1,26 +1,26 @@
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@@ -32,9 +32,9 @@ a287c0dfe49081626567c7fe87f74cce5831f58e459b427b5e05567641f47b78  models/65B/con
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 9e556afd44213b6bd1be2b850ebbbd98f5481437a8021afaf58ee7fb1818d347  models/tokenizer.model

convert-lora-to-ggml.py

@@ -49,7 +49,12 @@ def translate_tensor_name(t: str) -> str:
 def write_file_header(fout: TextIO, params: Dict[str, Any]) -> None:
     fout.write(b"ggla"[::-1])  # magic (ggml lora)
     fout.write(struct.pack("i", 1))  # file version
-    fout.write(struct.pack("ii", params["r"], params["lora_alpha"]))
+    fout.write(struct.pack("i", params["r"]))
+    # https://opendelta.readthedocs.io/en/latest/modules/deltas.html says that `lora_alpha` is an int
+    # but some models ship a float value instead
+    # let's convert to int, but fail if lossless conversion is not possible
+    assert int(params["lora_alpha"]) == params["lora_alpha"], "cannot convert float to int losslessly"
+    fout.write(struct.pack("i", int(params["lora_alpha"])))
 
 
 def write_tensor_header(
@@ -89,7 +94,7 @@ def write_tensor_header(
     print(f"Error: unsupported adapter type {params['peft_type']}, expected LORA")
     sys.exit(1)
 
-if params["fan_in_fan_out"] == True:
+if params["fan_in_fan_out"] is True:
     print("Error: param fan_in_fan_out is not supported")
     sys.exit(1)
 

examples/quantize/quantize.cpp

@@ -16,6 +16,7 @@ int main(int argc, char ** argv) {
         fprintf(stderr, "  type = %d - q4_1\n", LLAMA_FTYPE_MOSTLY_Q4_1);
         fprintf(stderr, "  type = %d - q4_2\n", LLAMA_FTYPE_MOSTLY_Q4_2);
         fprintf(stderr, "  type = %d - q4_3\n", LLAMA_FTYPE_MOSTLY_Q4_3);
+        fprintf(stderr, "  type = %d - q8_0\n", LLAMA_FTYPE_MOSTLY_Q8_0);
         return 1;
     }
 

flake.nix

@@ -30,9 +30,9 @@
             mv bin/* $out/bin/
             mv $out/bin/main $out/bin/llama
 
-            echo "#!${llama-python}/bin/python" > $out/bin/convert-pth-to-ggml
-            cat ${./convert-pth-to-ggml.py} >> $out/bin/convert-pth-to-ggml
-            chmod +x $out/bin/convert-pth-to-ggml
+            echo "#!${llama-python}/bin/python" > $out/bin/convert.py
+            cat ${./convert.py} >> $out/bin/convert.py
+            chmod +x $out/bin/convert.py
           '';
           meta.mainProgram = "llama";
         };

ggml-cuda.cu

@@ -41,6 +41,13 @@ typedef struct {
 } block_q4_3;
 static_assert(sizeof(block_q4_3) == 2 * sizeof(ggml_fp16_t) + QK4_3 / 2, "wrong q4_3 block size/padding");
 
+#define QK8_0 32
+typedef struct {
+    float   d;              // delta
+    int8_t  qs[QK8_0];      // quants
+} block_q8_0;
+static_assert(sizeof(block_q8_0) == sizeof(float) + QK8_0, "wrong q8_0 block size/padding");
+
 static __global__ void dequantize_block_q4_0(const void * vx, float * y) {
     const block_q4_0 * x = (const block_q4_0 *) vx;
 
@@ -135,6 +142,22 @@ static __global__ void dequantize_block_q4_3(const void * vx, float * y) {
     }
 }
 
+static __global__ void dequantize_block_q8_0(const void * vx, float * y) {
+    const block_q8_0 * x = (const block_q8_0 *) vx;
+
+    const int i = blockIdx.x;
+
+    const float d = x[i].d;
+
+    const int8_t * pp = x[i].qs;
+
+    for (int l = 0; l < QK8_0; l++) {
+        const int8_t vi = pp[l];
+
+        y[i*QK8_0 + l] = vi*d;
+    }
+}
+
 void dequantize_row_q4_0_cuda(const void * vx, float * y, int k, cudaStream_t stream) {
     const int nb = k / QK4_0;
     dequantize_block_q4_0<<<nb, 1, 0, stream>>>(vx, y);
@@ -155,6 +178,11 @@ void dequantize_row_q4_3_cuda(const void * vx, float * y, int k, cudaStream_t st
     dequantize_block_q4_3<<<nb, 1, 0, stream>>>(vx, y);
 }
 
+void dequantize_row_q8_0_cuda(const void * vx, float * y, int k, cudaStream_t stream) {
+    const int nb = k / QK8_0;
+    dequantize_block_q8_0<<<nb, 1, 0, stream>>>(vx, y);
+}
+
 // buffer pool for cuda
 #define MAX_CUDA_BUFFERS 16
 

ggml-cuda.h

@@ -67,6 +67,7 @@ void dequantize_row_q4_0_cuda(const void * vx, float * y, int k, cudaStream_t st
 void dequantize_row_q4_1_cuda(const void * vx, float * y, int k, cudaStream_t stream);
 void dequantize_row_q4_2_cuda(const void * vx, float * y, int k, cudaStream_t stream);
 void dequantize_row_q4_3_cuda(const void * vx, float * y, int k, cudaStream_t stream);
+void dequantize_row_q8_0_cuda(const void * vx, float * y, int k, cudaStream_t stream);
 
 #ifdef  __cplusplus
 }