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imatrix : avoid using imatrix.dat in README

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Francis Couture-Harpin
2025-07-12 14:56:18 -04:00
parent 183eeb5518
commit 942c55cd57
1 changed files with 6 additions and 5 deletions
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11
tools/imatrix/README.md
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@@ -7,14 +7,15 @@ More information is available here: https://github.com/ggml-org/llama.cpp/pull/4
```
./llama-imatrix \
-m model.gguf -f some-text.txt [-o imatrix.dat] [--process-output] [--verbosity 1] \
-m model.gguf -f some-text.txt [-o imatrix.gguf] [--process-output] \
[--no-ppl] [--chunk 123] [--output-frequency 10] [--save-frequency 0] \
[--in-file imatrix-prev-0.dat --in-file imatrix-prev-1.dat ...]
[--in-file imatrix-prev-0.gguf --in-file imatrix-prev-1.gguf ...] \
[--parse-special]
```
Here `-m` with a model name and `-f` with a file containing training data (such as e.g. `wiki.train.raw`) are mandatory.
The parameters in square brackets are optional and have the following meaning:
* `-o` (or `--output-file`) specifies the name of the file where the computed data will be stored. If missing `imatrix.dat` is used.
* `-o` (or `--output-file`) specifies the name of the file where the computed data will be stored. If missing `imatrix.gguf` is used.
* `--verbosity` specifies the verbosity level. If set to `0`, no output other than the perplexity of the processed chunks will be generated. If set to `1`, each time the results are saved a message is written to `stderr`. If `>=2`, a message is output each time data is collected for any tensor. Default verbosity level is `1`.
* `--output-frequency` specifies how often the so far computed result is saved to disk. Default is 10 (i.e., every 10 chunks)
* `--save-frequency` specifies how often to save a copy of the imatrix in a separate file. Default is 0 (i.e., never)
@@ -25,9 +26,9 @@ For faster computation, make sure to use GPU offloading via the `-ngl` argument
## Example
```bash
# generate importance matrix (imatrix.dat)
# generate importance matrix (imatrix.gguf)
./llama-imatrix -m ggml-model-f16.gguf -f train-data.txt -ngl 99
# use the imatrix to perform a Q4_K_M quantization
./llama-quantize --imatrix imatrix.dat ggml-model-f16.gguf ./ggml-model-q4_k_m.gguf q4_k_m
./llama-quantize --imatrix imatrix.gguf ggml-model-f16.gguf ./ggml-model-q4_k_m.gguf q4_k_m
```