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ggml : disable GGML_TASK_INIT and GGML_TASK_FINALIZE by default (#1995)

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Will not be scheduled unless explicitly enabled.
This commit is contained in:
Qingyou Meng 2023-07-01 23:42:43 +08:00 committed by GitHub
parent b8c8dda75f
commit b1ca8f36a9
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2 changed files with 55 additions and 9 deletions
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61
ggml.c
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@ -3846,6 +3846,40 @@ static_assert(GGML_OP_COUNT == 64, "GGML_OP_COUNT != 64");
static_assert(sizeof(struct ggml_object)%GGML_MEM_ALIGN == 0, "ggml_object size must be a multiple of GGML_MEM_ALIGN");
static_assert(sizeof(struct ggml_tensor)%GGML_MEM_ALIGN == 0, "ggml_tensor size must be a multiple of GGML_MEM_ALIGN");
// WARN:
// Mis-confguration can lead to problem that's hard to reason about:
// * At best it crash or talks nosense.
// * At worst it talks slightly difference but hard to perceive.
//
// An op has to enable INIT or FINALIZE when any of it's branch needs that pass.
// Take care about compile options (e.g., GGML_USE_xxx).
static bool GGML_OP_HAS_INIT [GGML_OP_COUNT] = { 0 };
static bool GGML_OP_HAS_FINALIZE[GGML_OP_COUNT] = { 0 };
static void ggml_setup_op_has_task_pass(void) {
{ // INIT
bool * I = GGML_OP_HAS_INIT;
I[GGML_OP_ACC ] = true;
I[GGML_OP_MUL_MAT ] = true;
I[GGML_OP_OUT_PROD ] = true;
I[GGML_OP_SET ] = true;
I[GGML_OP_GET_ROWS_BACK ] = true;
I[GGML_OP_DIAG_MASK_INF ] = true;
I[GGML_OP_DIAG_MASK_ZERO ] = true;
I[GGML_OP_CONV_1D_S1_PH ] = true;
I[GGML_OP_CONV_1D_S2_PH ] = true;
I[GGML_OP_CONV_2D_SK_P0 ] = true;
I[GGML_OP_FLASH_ATTN_BACK ] = true;
I[GGML_OP_CROSS_ENTROPY_LOSS ] = true;
}
{ // FINALIZE
bool * F = GGML_OP_HAS_FINALIZE;
F[GGML_OP_CROSS_ENTROPY_LOSS ] = true;
}
}
//
// ggml context
//
@ -4267,6 +4301,8 @@ struct ggml_context * ggml_init(struct ggml_init_params params) {
ggml_cl_init();
#endif
ggml_setup_op_has_task_pass();
is_first_call = false;
}
@ -16791,9 +16827,11 @@ static thread_ret_t ggml_graph_compute_thread(void * data) {
if (node_n != -1) {
/* FINALIZE */
struct ggml_tensor * node = state->shared->cgraph->nodes[node_n];
params.nth = node->n_tasks;
ggml_compute_forward(&params, node);
ggml_graph_compute_perf_stats_node(node, state->shared);
if (GGML_OP_HAS_FINALIZE[node->op]) {
params.nth = node->n_tasks;
ggml_compute_forward(&params, node);
ggml_graph_compute_perf_stats_node(node, state->shared);
}
}
// distribute new work or execute it direct if 1T
@ -16805,10 +16843,13 @@ static thread_ret_t ggml_graph_compute_thread(void * data) {
state->shared->perf_node_start_cycles = ggml_perf_cycles();
state->shared->perf_node_start_time_us = ggml_perf_time_us();
params.nth = node->n_tasks;
/* INIT */
params.type = GGML_TASK_INIT;
params.nth = node->n_tasks;
ggml_compute_forward(&params, node);
if (GGML_OP_HAS_INIT[node->op]) {
params.type = GGML_TASK_INIT;
ggml_compute_forward(&params, node);
}
if (node->n_tasks == 1) {
// TODO: maybe push node_n to the atomic but if other threads see n_tasks is 1,
@ -16816,9 +16857,11 @@ static thread_ret_t ggml_graph_compute_thread(void * data) {
params.type = GGML_TASK_COMPUTE;
ggml_compute_forward(&params, node);
params.type = GGML_TASK_FINALIZE;
ggml_compute_forward(&params, node);
ggml_graph_compute_perf_stats_node(node, state->shared);
if (GGML_OP_HAS_FINALIZE[node->op]) {
params.type = GGML_TASK_FINALIZE;
ggml_compute_forward(&params, node);
ggml_graph_compute_perf_stats_node(node, state->shared);
}
} else {
break;
}

3
ggml.h
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@ -444,6 +444,9 @@ extern "C" {
// compute types
// NOTE: the INIT or FINALIZE pass is not scheduled unless explicitly enabled.
// This behavior was changed since https://github.com/ggerganov/llama.cpp/pull/1995.
enum ggml_task_type {
GGML_TASK_INIT = 0,
GGML_TASK_COMPUTE,