Specify tensor name regex for tensors to be repacked (#274)

Co-authored-by: Iwan Kawrakow <iwan.kawrakow@gmail.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/examples/quantize/quantize.cpp b/examples/quantize/quantize.cpp
index 84ea38d4..1d00c874 100644
--- a/examples/quantize/quantize.cpp
+++ b/examples/quantize/quantize.cpp
@@ -146,6 +146,7 @@ static void usage(const char * executable) {
     printf("  --token-embedding-type ggml_type: use this ggml_type for the token_embd.weight tensor.\n\n");
     printf("  --custom-q regex1=type1,regex2=type2...: use this to specify custom quantization type rules.\n\n");
     printf("  --repack Repack all tensors to the corresponding _r4/8 variant if available.\n\n");
+    printf("  --repack-pattern Comma separated list of regexs to use for matching tensor names to be repacked.\n\n");
     printf("Additional specific tensor quantization types used in the custom quant scheme 'CQS (default is Q2_K):\n");
     printf("      --attn-q-type ggml_type: use this ggml_type for the attn_q.weight tensor.\n");
     printf("      --attn-k-type ggml_type: use this ggml_type for the attn_k.weight tensor.\n");
@@ -327,6 +328,8 @@ int main(int argc, char ** argv) {
     std::vector<llama_model_kv_override> kv_overrides;
     std::vector<CustomQ> custom_quants;
 
+    std::vector<std::string> repack_patterns;
+
     for (; arg_idx < argc && strncmp(argv[arg_idx], "--", 2) == 0; arg_idx++) {
         if (strcmp(argv[arg_idx], "--leave-output-tensor") == 0) {
             params.quantize_output_tensor = false;
@@ -334,6 +337,13 @@ int main(int argc, char ** argv) {
             params.ignore_imatrix_rules = true;
         } else if (strcmp(argv[arg_idx], "--repack") == 0) {
             params.only_repack = true;
+        } else if (strcmp(argv[arg_idx], "--repack-pattern") == 0) {
+            if (arg_idx < argc-1) {
+                auto p = string_split(argv[++arg_idx], ',');
+                repack_patterns.insert(repack_patterns.end(), p.begin(), p.end());
+            } else {
+                usage(argv[0]);
+            }
         } else if (strcmp(argv[arg_idx], "--output-tensor-type") == 0) {
             if (arg_idx < argc-1) {
                 params.output_tensor_type = parse_ggml_type(argv[++arg_idx]);
@@ -431,6 +441,10 @@ int main(int argc, char ** argv) {
         }
     }
 
+    if (!repack_patterns.empty()) {
+        params.repack_pattern = &repack_patterns;
+    }
+
     if (argc - arg_idx < 2) {
         printf("%s: bad arguments\n", argv[0]);
         usage(argv[0]);