ggml : remove bit shuffling (#1405)

* ggml : remove Q4_0 bit shufling (ARM NEON)

* ggml : remove Q4_1 bit shuffling (ARM NEON + reference)

* ggml : nibbles_from_floats() + bytes_from_nibbles() (ARM NEON)

* ggml : remove Q4_2 bit shuffling (WIP, BROKEN)

* ggml : remove Q5_0 bit shuffling (ARM NEON)

* ggml : 2x faster scalar implementations

* ggml : remove Q5_1 bit shuffling (ARM NEON + scalar)

* ggml : simplify scalar dot

* ggml : remove WASM SIMD bit shuffling + remove vzip for ARM 32-bit

* ggml : fix Q4_1 quantization

* ggml : update cuBLAS + normalize variable names

* ggml : remove Q4_2 mode

* ggml : minor formatting

* ggml : fix Q5_0 quantization

* scripts : add script for measuring the time per token

* AVX implementations (#1370)

* ggml : uniform 5th bit extraction

* llama : produce error upon loading old model files

* llama : fix model magic/version write

* ggml : speed-up Q5_0 + Q5_1 at 4 threads

* ggml : preserve old Q4 and Q5 formats

* ggml : simplify Q8_1 - no need for low / high sums anymore

* ggml : fix Q8_0 and Q8_1 rounding

* Revert "AVX implementations (#1370)"

This reverts commit 948d124837f9d287d8490f41338e0e4cceb0814f.

* ggml : fix AVX2 implementation

* sha : update hashes for 7B and 13B

* readme : update timings + remove warning banner

* llama : update v2 PR number to 1405

* ggml : fix WASM comments

* ggml : back to original bit order

* readme : add note that Q4 and Q5 have been changed

* llama : fix return for unknown version

---------

Co-authored-by: Stephan Walter <stephan@walter.name>

1 files changed, 1 insertions, 3 deletions

diff --git a/ggml.h b/ggml.h
index 508dd69..bb9a025 100644
--- a/ggml.h
+++ b/ggml.h
@@ -231,7 +231,7 @@ extern "C" {
         GGML_TYPE_F16  = 1,
         GGML_TYPE_Q4_0 = 2,
         GGML_TYPE_Q4_1 = 3,
-        GGML_TYPE_Q4_2 = 4,
+        // GGML_TYPE_Q4_2 = 4, support has been removed
         // GGML_TYPE_Q4_3 (5) support has been removed
         GGML_TYPE_Q5_0 = 6,
         GGML_TYPE_Q5_1 = 7,
@@ -251,7 +251,6 @@ extern "C" {
         GGML_FTYPE_MOSTLY_Q4_0 = 2,  // except 1d tensors
         GGML_FTYPE_MOSTLY_Q4_1 = 3,  // except 1d tensors
         GGML_FTYPE_MOSTLY_Q4_1_SOME_F16 = 4, // tok_embeddings.weight and output.weight are F16
-        GGML_FTYPE_MOSTLY_Q4_2 = 5,  // except 1d tensors
         GGML_FTYPE_MOSTLY_Q8_0 = 7,  // except 1d tensors
         GGML_FTYPE_MOSTLY_Q5_0 = 8,  // except 1d tensors
         GGML_FTYPE_MOSTLY_Q5_1 = 9,  // except 1d tensors
@@ -876,7 +875,6 @@ extern "C" {
 
     GGML_API size_t ggml_quantize_q4_0(const float * src, void * dst, int n, int k, int64_t * hist);
     GGML_API size_t ggml_quantize_q4_1(const float * src, void * dst, int n, int k, int64_t * hist);
-    GGML_API size_t ggml_quantize_q4_2(const float * src, void * dst, int n, int k, int64_t * hist);
     GGML_API size_t ggml_quantize_q5_0(const float * src, void * dst, int n, int k, int64_t * hist);
     GGML_API size_t ggml_quantize_q5_1(const float * src, void * dst, int n, int k, int64_t * hist);
     GGML_API size_t ggml_quantize_q8_0(const float * src, void * dst, int n, int k, int64_t * hist);