vbatts/llama.cpp
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ggml : parallelize ggml_exp

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This results in 8% faster token generation for Mamba-130M.
This commit is contained in:
Francis Couture-Harpin 2024-01-29 13:33:27 -05:00
parent 9e77061a3b
commit 3f7233b62e
1 changed files with 19 additions and 14 deletions
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33
ggml.c
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@ -8671,27 +8671,32 @@ static void ggml_compute_forward_exp_f32(
const struct ggml_compute_params * params,
const struct ggml_tensor * src0,
struct ggml_tensor * dst) {
GGML_ASSERT(params->ith == 0);
GGML_ASSERT(ggml_is_contiguous_except_dim_1(src0));
GGML_ASSERT(ggml_is_contiguous_except_dim_1(dst));
GGML_ASSERT(ggml_are_same_shape(src0, dst));
if (params->type == GGML_TASK_TYPE_INIT || params->type == GGML_TASK_TYPE_FINALIZE) {
return;
}
GGML_ASSERT( dst->nb[0] == sizeof(float));
GGML_ASSERT(src0->nb[0] == sizeof(float));
const int ith = params->ith;
const int nth = params->nth;
GGML_TENSOR_UNARY_OP_LOCALS
const int nc = src0->ne[0];
const int nr = ggml_nrows(src0);
for (int64_t i3 = 0; i3 < ne03; i3++) {
for (int64_t i2 = 0; i2 < ne02; i2++) {
for (int64_t i1 = 0; i1 < ne01; i1++) {
float * src_row = (float *) ((char *) src0->data + i1*nb01 + i2*nb02 + i3*nb03);
float * dst_row = (float *) ((char *) dst->data + i1*nb1 + i2*nb2 + i3*nb3);
ggml_vec_exp_f32(ne00, dst_row, src_row);
}
}
}
// rows per thread
const int dr = (nr + nth - 1)/nth;
// row range for this thread
const int ir0 = dr*ith;
const int ir1 = MIN(ir0 + dr, nr);
for (int i1 = ir0; i1 < ir1; i1++) {
ggml_vec_exp_f32(nc,
(float *) ((char *) dst->data + i1*( dst->nb[1])),
(float *) ((char *) src0->data + i1*(src0->nb[1])));
};
}
static void ggml_compute_forward_exp(
@ -17413,13 +17418,13 @@ static int ggml_get_n_tasks(struct ggml_tensor * node, int n_threads) {
case GGML_OP_ADD:
case GGML_OP_ADD1:
case GGML_OP_ACC:
case GGML_OP_EXP:
{
n_tasks = n_threads;
} break;
case GGML_OP_SUB:
case GGML_OP_SQR:
case GGML_OP_SQRT:
case GGML_OP_EXP:
case GGML_OP_LOG:
case GGML_OP_SUM:
case GGML_OP_SUM_ROWS: