Files
Max Krasnyansky 13e673863b hexagon: flash attention rework (optimizations, accuracy improvements, etc) (#25085)
* hex-mm: fold mm quant tasks into the main matmul threads

* hex-mm: minor formatting fixes

* hex-mm: cleanup is_quant checks in dma dispatch

* hex-mm: fix dst-spad alignment

* hex-mm: move fp kernels in the hvx-mm-kernels header

* hex-mm: fuse with ADD

* hex-fa: factor out ukernels into separate headers and unify the rest

* hex-fa: move kernel-params compute into the host

* hex-fa: refactor vtcm alloc for consistency

* hex-fa: add support for FA_SELECT

* hex-fa: update tracing insrumentation to cover all functions

* hex-fa: update hvx fallback thresholds to recover t/g regressions

* hex-fa: update tracing instrumentation

* hex-fa: improved tracing with additional events

* hex-fa: optimize mask processing (fastdiv, etc)

* hex-fa: improve mask dma caching

* hmx-fa: change loop order to maximize mask cache hits

* hex-fa: remove over instrumentation

* hex-fa: breakdown QKV prep trace events

* hmx-fa: further mask proc optimizations

* hex-fa: mask broadcast is the common case, optimize for that

* hex-fa: use aligned loads where possible

* hex-fa: update loops to use uint32_t indices

* hmx-fa: fold vtcm init into q prep task

* hex-fa: update rest of the hmx funcs to use uint32_t

* hmx-fa: fold build_d into the main softmax loop

* hmx-fa: start kv dmas earlier

* hmx-fa: start mask dma a bit earlier

* hex-fa: precompute rows per task to avoid divs

* hmx-fa: specialize fa_o_store for f16 and f32

* hmx-fa: prelim support for Sinks

* hmx-fa: keep softmax accumulators in fp32

* hex-fa: add tanh_f16 and exp2_f16 and use that in FA

* hex-fa: use fp16 math in the hvx kernel

* hex-fa: avoid expensive float -> __fp16 cast for slopes and softcap

* hex-fa: replace most vec_exp_f32 with vec_exp2_f16

* hmx-fa: vectorize sinks update

* hex-fa: minor formatting

* hmx-fa: fold softcap loop into the tile load

* hmx-fa: use vectoralias to populate sinks

* hex-fa: remove redudant check

* hex-fa: fix vtcm size compute to use fp32 for accumulators

* hex-mm: fix trailing spaces

* hmx-fa: dont use -inf to init mask to avoid conversion overflows

* hex-fa: no need to explicitly guard -inf in the f16->f32 converter now

* hmx-fa: cleanup fa sinks handling

* hex-mm: fixed src2 stride handling when mm is fused with add

* hex-fa: make lto happy
2026-07-01 06:59:19 -07:00

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#!/bin/sh
#
# Basedir on device
basedir=/data/local/tmp/llama.cpp
cli_opts=
branch=.
[ "$B" != "" ] && branch=$B
adbserial=
[ "$S" != "" ] && adbserial="-s $S"
adbhost=
[ "$H" != "" ] && adbhost="-H $H"
device="HTP0"
[ "$D" != "" ] && device="$D"
verbose=
[ "$V" != "" ] && verbose="GGML_HEXAGON_VERBOSE=$V"
sched=
[ "$SCHED" != "" ] && sched="GGML_SCHED_DEBUG=2" cli_opts="$cli_opts -v"
profile=
[ "$PROF" != "" ] && profile="GGML_HEXAGON_PROFILE=$PROF"
opmask=
[ "$OPSTAGE" != "" ] && opmask="GGML_HEXAGON_OPSTAGE=$OPSTAGE"
nhvx=
[ "$NHVX" != "" ] && nhvx="GGML_HEXAGON_NHVX=$NHVX"
hmx=
[ "$HMX" != "" ] && hmx="GGML_HEXAGON_USE_HMX=$HMX"
ndev=
[ "$NDEV" != "" ] && ndev="GGML_HEXAGON_NDEV=$NDEV"
hb=
[ "$HB" != "" ] && hb="GGML_HEXAGON_HOSTBUF=$HB"
opbatch=
[ "$OB" != "" ] && opbatch="GGML_HEXAGON_OPBATCH=$OB"
opqueue=
[ "$OQ" != "" ] && opqueue="GGML_HEXAGON_OPQUEUE=$OQ"
oppoll=
[ "$OP" != "" ] && oppoll="GGML_HEXAGON_OPPOLL=$OP"
opfuse=
[ "$OC" != "" ] && opfuse="GGML_HEXAGON_OPFUSION=$OC"
mmsel=
[ "$MM" != "" ] && mmsel="GGML_HEXAGON_MM_SELECT=$MM"
fasel=
[ "$FA" != "" ] && fasel="GGML_HEXAGON_FA_SELECT=$FA"
set -x
tool=$1; shift
adb $adbserial $adbhost shell " \
cd $basedir; ulimit -c unlimited; \
LD_LIBRARY_PATH=$basedir/$branch/lib \
ADSP_LIBRARY_PATH=$basedir/$branch/lib \
$verbose $sched $opmask $profile $nhvx $hmx $ndev $hb $opbatch $opqueue $oppoll $opfuse $mmsel $fasel ./$branch/bin/$tool $@ \
"