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ggml-cpu: use runtime SVE width in FWHT #24059

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Merged
ggerganov merged 1 commit into from
Jun 3, 2026
Merged

ggml-cpu: use runtime SVE width in FWHT #24059

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11 changes: 10 additions & 1 deletion ggml/src/ggml-cpu/ops.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -8955,7 +8955,12 @@ static void ggml_compute_forward_flash_attn_ext_f16(
k->type == v->type &&
neq1 >= Q_TILE_SZ);
#ifdef GGML_SIMD
use_tiled &= (DV % GGML_F32_EPR == 0);
#if defined(__ARM_FEATURE_SVE)
const int64_t f32_epr = svcntw();
#else
const int64_t f32_epr = GGML_F32_EPR;
#endif
use_tiled &= (DV % f32_epr == 0);
#endif
int current_chunk = ith;

Expand Down Expand Up @@ -11358,7 +11363,11 @@ static void ggml_compute_forward_fwht_f32(const ggml_compute_params * params, gg

// Scalar passes
#if defined(GGML_SIMD)
#if defined(__ARM_FEATURE_SVE)
const int step = svcntw();
#else
const int step = GGML_F32_EPR;
#endif
#else
const int step = n;
#endif
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