aditya/llama.cpp
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Ensure --mlock works properly with mmap() support

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This commit is contained in:
Justine Tunney 2023-03-30 01:53:36 -07:00
parent 78ca9838ee
commit 6f23ba5ee2
3 changed files with 34 additions and 16 deletions
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39
ggml.c
View file

@ -2884,36 +2884,47 @@ size_t ggml_set_scratch(struct ggml_context * ctx, struct ggml_scratch scratch)
return result;
}
#ifdef __APPLE__
#define MLOCK_SUGGESTION \
"Try increasing the sysctl values 'vm.user_wire_limit' and 'vm.global_user_wire_limit' and/or " \
"decreasing 'vm.global_no_user_wire_amount'. Also try increasing RLIMIT_MLOCK (ulimit -l).\n"
#else
#define MLOCK_SUGGESTION \
"Try increasing RLIMIT_MLOCK ('ulimit -l' as root).\n"
#endif
bool ggml_mlock_supported(void) {
return GGML_MLOCK_SUPPORT;
}
bool ggml_mlock(
struct ggml_context * ctx,
const void *opt_extra_addr,
size_t opt_extra_len,
char **err_p) {
// TODO: Use SetProcessWorkingSetSize() + VirtualLock() on WIN32
#if GGML_MLOCK_SUPPORT
#ifdef __APPLE__
#define MLOCK_SUGGESTION "Try increasing the sysctl values 'vm.user_wire_limit' and 'vm.global_user_wire_limit' and/or\n" \
"decreasing 'vm.global_no_user_wire_amount'. Also try increasing RLIMIT_MLOCK (ulimit -l)."
#else
#define MLOCK_SUGGESTION "Try increasing RLIMIT_MLOCK (ulimit -l)."
#endif
bool ggml_mlock(struct ggml_context * ctx, char ** err_p) {
if (ctx->mem_buffer_mlocked) {
return true;
}
if (mlock(ctx->mem_buffer, ctx->mem_size)) {
int ret = asprintf(err_p, "failed to mlock %zu-byte buffer: %s\n" MLOCK_SUGGESTION,
ctx->mem_size, strerror(errno));
GGML_ASSERT(ret >= 0);
if (mlock(ctx->mem_buffer, ctx->mem_size) ||
(opt_extra_len &&
mlock(opt_extra_addr, opt_extra_len))) {
if ((*err_p = malloc(1024))) {
snprintf(*err_p, 1024,
"failed to mlock %zu-byte buffer: %s\n" MLOCK_SUGGESTION,
ctx->mem_size + opt_extra_len,
strerror(errno));
}
return false;
}
ctx->mem_buffer_mlocked = true;
return true;
}
#else // GGML_MLOCK_SUPPORT
bool ggml_mlock(struct ggml_context * ctx, char ** err_p) {
*err_p = strdup("can't mlock because it's not supported on this system");
return false;
}
#endif // GGML_MLOCK_SUPPORT
}
////////////////////////////////////////////////////////////////////////////////

6
ggml.h
View file

@ -345,7 +345,11 @@ size_t ggml_used_mem(const struct ggml_context * ctx);
size_t ggml_set_scratch(struct ggml_context * ctx, struct ggml_scratch scratch);
bool ggml_mlock_supported(void);
bool ggml_mlock(struct ggml_context * ctx, char ** err_p);
bool ggml_mlock(
struct ggml_context * ctx,
const void *opt_extra_addr,
size_t opt_extra_len,
char **err_p);
struct ggml_tensor * ggml_new_tensor(
struct ggml_context * ctx,

5
llama.cpp
View file

@ -1595,7 +1595,10 @@ struct llama_context * llama_init_from_file(
if (params.use_mlock) {
char *err;
if (!ggml_mlock(ctx->model.ctx, &err)) {
if (!ggml_mlock(ctx->model.ctx,
ctx->model.mm_addr,
ctx->model.mm_length,
&err)) {
fprintf(stderr, "%s\n", err);
free(err);
llama_free(ctx);