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Support multiple variants for a given llm lib type

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In some cases we may want multiple variants for a given GPU type or CPU.
This adds logic to have an optional Variant which we can use to select
an optimal library, but also allows us to try multiple variants in case
some fail to load.

This can be useful for scenarios such as ROCm v5 vs v6 incompatibility
or potentially CPU features.
This commit is contained in:
Daniel Hiltgen
2024-01-05 12:13:08 -08:00
parent b24e8d17b2
commit 8da7bef05f
16 changed files with 428 additions and 212 deletions
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28
gpu/gpu_info_rocm.c
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@@ -4,6 +4,8 @@
#include <string.h>
#define ROCM_LOOKUP_SIZE 5
void rocm_init(char *rocm_lib_path, rocm_init_resp_t *resp) {
rsmi_status_t ret;
resp->err = NULL;
@@ -13,11 +15,12 @@ void rocm_init(char *rocm_lib_path, rocm_init_resp_t *resp) {
struct lookup {
char *s;
void **p;
} l[4] = {
} l[ROCM_LOOKUP_SIZE] = {
{"rsmi_init", (void *)&resp->rh.initFn},
{"rsmi_shut_down", (void *)&resp->rh.shutdownFn},
{"rsmi_dev_memory_total_get", (void *)&resp->rh.totalMemFn},
{"rsmi_dev_memory_usage_get", (void *)&resp->rh.usageMemFn},
{"rsmi_version_get", (void *)&resp->rh.versionGetFn},
// { "rsmi_dev_id_get", (void*)&resp->rh.getHandle },
};
@@ -32,7 +35,7 @@ void rocm_init(char *rocm_lib_path, rocm_init_resp_t *resp) {
return;
}
for (i = 0; i < 4; i++) {
for (i = 0; i < ROCM_LOOKUP_SIZE; i++) {
*l[i].p = LOAD_SYMBOL(resp->rh.handle, l[i].s);
if (!l[i].p) {
UNLOAD_LIBRARY(resp->rh.handle);
@@ -103,4 +106,25 @@ void rocm_check_vram(rocm_handle_t h, mem_info_t *resp) {
return;
}
void rocm_get_version(rocm_handle_t h, rocm_version_resp_t *resp) {
const int buflen = 256;
char buf[buflen + 1];
if (h.handle == NULL) {
resp->str = strdup("nvml handle not initialized");
resp->status = 1;
return;
}
rsmi_version_t ver;
rsmi_status_t ret;
ret = h.versionGetFn(&ver);
if (ret != RSMI_STATUS_SUCCESS) {
snprintf(buf, buflen, "unexpected response on version lookup %d", ret);
resp->status = 1;
} else {
snprintf(buf, buflen, "%d", ver.major);
resp->status = 0;
}
resp->str = strdup(buf);
}
#endif // __APPLE__