hexagon: MUL_MAT and MUL_MAT_ID rework : 32x32 tiled weight repack, kernel-params, cached graphs (ggml-org#24954)

* hex-mm: new weight layout and fusion updates

* hvx-mm: unroll the new tiled vec_dots to optimize hvx register util

* hex-mm: optimize dyn.quant format for q8_0 and q8_1 to reduce overhead in vec_dots.

* hvx-mm: parallel quantizer per block for large rows

* hvx-mm: simplify and futher optimize dyn.quant and vec_dots

* hvx-mm: keep intermediate per tile accumulators in fp16

* hmx-mm: optimize weight dequant by aligning the repacked tiles with the DMA

* hmx-mm: remove qweight scratch and just use vtcm_weight

* hmx-mm: remove all unused and obsolete code

* hmx-mm: the new tiled repack format is here to stay -- rename all x4x2 to _tiled

* hmx-mm: improve activation processing with dma prefetch

* hex-mm: fix hmx/hvx fallback logic and MUL_MAT_ID allocation (unbreaks OLMoE)

* hex-mm: align the weight tiles with dma just like we did in hmx-mm

* hex-mm: factor out common mm bits into htp/matmul-ops.h

* hex-mm: start moving mm kernel selection to the host

* hex-mm: move all of the matmul param compute into the host

* hmx-mm: restore pipelined mode

* hmx-mm: unroll the dequant functions to optimize register usage

* hmx-mm: further improve activation process

* hex-mm: use vtcm_seq_alloc for all vtcm allocations and define more common functions

* hex-mm: improve mm optimizer to acount for number of activation threads

* hex-mm: fix matmul-id kernel params selection (unbreaks OLMoE and LFM)

* hexagon: remove support for arch < v73 since HMX is now required for most use-cases

* hex-mm: cleanup naming for consistency

* hex-mm: make sure matmul fusion accounts for vtcm allocation

* hex-mm: minor cleanup for kernel_params definition

* hex-mm: replace hardcoded limits with proper checks for vtcm requirements

* hex-mm: add support for non-tiled mm as a fallback option and factor out hvx kernels into separate header

* hex-mm: remove unused functions

* hex-mm: add shorthand for MM_SELECT in run-tool script

* hvx-mm: factor out hvx/hmx microkernels and unify matmul entry and dispatch

* hex-mm: further cleanup matmul fallback path

* hex-mm: refactor matmul entry point and dispatch a bit further

* hexagon: update cmake build to enable hmx for everything

* hex-ops: optimize kernel_param updates and include summary in the logs

* hex-mm: add support for GGML_HEXAGON_MM_SELECT

* hex-mm: add hex-common header

* hex-mm: pass correct number of tasks to workpool

* hex-mm: add proper checks for no-work in dyn.quant tasks

* hex-mm: convert all quantizers into a macro

* hex-mm: fix hvx-flat fallback to pass all MUL_MAT tests

* hex-mm: vectorize q8_1 quantizer

* hex-mm: improve fused ffn mm stride handling

* hex-mm: consistent use of n_threads and pipeline in kernel_params

* hexagon: minor formatting

* hex-mm: update MUL_MAT_ID kernel_param handling to make sure host/npu are in sync

* hvx-mm: go back to accumulating in fp32 in tiled hvx kernels, more accurate and same perf

* hvx-mm: unroll the loops and remove masking that is not needed for tiled accums

* hmx-mm: optimize activation processing (slit loops, some unrolling, etc)

* hmx-mm: minor optimization for output processing

* hex-mm: consistent use of uint32_t and size_t in mm kernels

* hex-mm: remove legacy restrictions for rows to be multiple of 256

* hexagon: replace sprintf with snprintf

* hex-mm: relax hardcoded nrows checks and rely on VTCM size requirements

* hexagon: minor alignment fix

* hexagon: fix trailing spaces

* hex-mm: relax padding from 256 to 128 (leftovers)

* hex-mm: remove redundant checks for weight align to 128

we always use 2D dma for the weights and align them properly

* hmx-mm: MUL_MAT_ID better work distribution between hvx threads and hmx tracing

* hex-mm: specialize per-token mmid activation handling

* hex-profile: update python scripts to handle kernel-params section in the logging output

* hex-mm: move n_prefetch (aka dma_depth) into kernel params and remove unused fields

* hex-trace: use easier to parse format, simply and fix post-proc scripts

* hmx-mm: relax 32 row limit for output processing which helps utilization

* hmx-mm: use start-chunk idx for tracing info

* hmx-mm: parameterize activation dma pipeline

* hexagon: add support for simple graph caching to avoid recomputing kernel-params

* hex-mm: remove left-over repack functions

* hex-mm: tighten n_prefetch asserts

* hex-mm: remove duplicate round/align_up helper

* hexagon: cleanup common header used in host/npu

* hexagon: update early wakeup threshold

* hmx-mm: define cost constants and update solver to assume that repacked ne[1] is padded to 32

* hmx-mm: make precompute_matmul a bit more readable (split into smaller functions, etc)

* hex-mm: remove n_threads constraint

* hex-mm: minor formatting updates

* hex-mm: remove obsolete profiling logs

* hex-mm: restore hardcode gate to refuse lm-head to avoid repacking that tensor

Author: max-krasnyansky

docs/backend/snapdragon/CMakeUserPresets.json

@@ -24,7 +24,6 @@
             "GGML_LLAMAFILE":   "OFF",
             "GGML_OPENCL":      "ON",
             "GGML_HEXAGON":     "ON",
-            "GGML_HEXAGON_FP32_QUANTIZE_GROUP_SIZE": "128",
             "LLAMA_OPENSSL":    "OFF"
         }
     },
@@ -47,7 +46,6 @@
             "GGML_LLAMAFILE":   "OFF",
             "GGML_OPENCL":      "ON",
             "GGML_HEXAGON":     "ON",
-            "GGML_HEXAGON_FP32_QUANTIZE_GROUP_SIZE": "128",
             "LLAMA_OPENSSL":    "OFF"
         }
     },
@@ -73,7 +71,6 @@
             "GGML_LLAMAFILE":   "OFF",
             "GGML_OPENCL":      "OFF",
             "GGML_HEXAGON":     "ON",
-            "GGML_HEXAGON_FP32_QUANTIZE_GROUP_SIZE": "128",
             "LLAMA_OPENSSL":    "OFF"
         }
     },

ggml/CMakeLists.txt

@@ -266,7 +266,6 @@ set   (GGML_OPENCL_TARGET_VERSION "300" CACHE STRING
                                             "ggml: OpenCL API version to target")
 
 option(GGML_HEXAGON                         "ggml: enable Hexagon backend"                    OFF)
-set(GGML_HEXAGON_FP32_QUANTIZE_GROUP_SIZE 128 CACHE STRING "ggml: quantize group size (32, 64, or 128)")
 
 # toolchain for vulkan-shaders-gen
 set   (GGML_VULKAN_SHADERS_GEN_TOOLCHAIN "" CACHE FILEPATH "ggml: toolchain file for vulkan-shaders-gen")

ggml/src/ggml-hexagon/CMakeLists.txt

@@ -25,7 +25,6 @@ include(ExternalProject)
 option(GGML_HEXAGON_HTP_DEBUG  "ggml-hexagon: enable HTP debug output" OFF)
 option(GGML_HEXAGON_FA_EXP2_HF "ggml-hexagon: use FP16 exp2 polynomial in FA softmax instead of F32 exp round-trip" OFF)
 set(GGML_HEXAGON_HTP_CERT  "$ENV{HEXAGON_HTP_CERT}" CACHE PATH "ggml-hexagon: enable HTP library signing using certificate")
-set(GGML_HEXAGON_FP32_QUANTIZE_GROUP_SIZE 128 CACHE STRING "ggml-hexagon: quantize group size (32, 64, or 128)")
 
 add_library(htp_iface OBJECT
     ${CMAKE_CURRENT_BINARY_DIR}/htp_iface_stub.c)
@@ -72,15 +71,12 @@ function(build_htp_skel V)
             -DHEXAGON_SDK_ROOT=${HEXAGON_SDK_ROOT}
             -DHEXAGON_TOOLS_ROOT=${HEXAGON_TOOLS_ROOT}
             -DHEXAGON_HTP_DEBUG=${GGML_HEXAGON_HTP_DEBUG}
-            -DGGML_HEXAGON_FP32_QUANTIZE_GROUP_SIZE=${GGML_HEXAGON_FP32_QUANTIZE_GROUP_SIZE}
             -DDSP_VERSION=${V}
             -DPREBUILT_LIB_DIR="toolv19_${V}")
     list(APPEND HTP_SKELS ${CMAKE_CURRENT_BINARY_DIR}/libggml-htp-${V}.so)
     set(HTP_SKELS ${HTP_SKELS} PARENT_SCOPE)
 endfunction()
 
-build_htp_skel(v68)
-build_htp_skel(v69)
 build_htp_skel(v73)
 build_htp_skel(v75)
 build_htp_skel(v79)