ollama/gpu/gpu_info_cuda.c
Daniel Hiltgen 987c16b2f7 Report more information about GPUs in verbose mode
This adds additional calls to both CUDA and ROCm management libraries to
discover additional attributes about the GPU(s) detected in the system, and
wires up runtime verbosity selection.  When users hit problems with GPUs we can
ask them to run with `OLLAMA_DEBUG=1 ollama serve` and share the results.
2024-01-23 11:37:02 -08:00

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6.3 KiB
C

#ifndef __APPLE__ // TODO - maybe consider nvidia support on intel macs?
#include "gpu_info_cuda.h"
#include <string.h>
#define CUDA_LOOKUP_SIZE 12
void cuda_init(char *cuda_lib_path, cuda_init_resp_t *resp) {
nvmlReturn_t ret;
resp->err = NULL;
const int buflen = 256;
char buf[buflen + 1];
int i;
struct lookup {
char *s;
void **p;
} l[CUDA_LOOKUP_SIZE] = {
{"nvmlInit_v2", (void *)&resp->ch.initFn},
{"nvmlShutdown", (void *)&resp->ch.shutdownFn},
{"nvmlDeviceGetHandleByIndex", (void *)&resp->ch.getHandle},
{"nvmlDeviceGetMemoryInfo", (void *)&resp->ch.getMemInfo},
{"nvmlDeviceGetCount_v2", (void *)&resp->ch.getCount},
{"nvmlDeviceGetCudaComputeCapability", (void *)&resp->ch.getComputeCapability},
{"nvmlSystemGetDriverVersion", (void *)&resp->ch.nvmlSystemGetDriverVersion},
{"nvmlDeviceGetName", (void *)&resp->ch.nvmlDeviceGetName},
{"nvmlDeviceGetSerial", (void *)&resp->ch.nvmlDeviceGetSerial},
{"nvmlDeviceGetVbiosVersion", (void *)&resp->ch.nvmlDeviceGetVbiosVersion},
{"nvmlDeviceGetBoardPartNumber", (void *)&resp->ch.nvmlDeviceGetBoardPartNumber},
{"nvmlDeviceGetBrand", (void *)&resp->ch.nvmlDeviceGetBrand},
};
resp->ch.handle = LOAD_LIBRARY(cuda_lib_path, RTLD_LAZY);
if (!resp->ch.handle) {
char *msg = LOAD_ERR();
snprintf(buf, buflen,
"Unable to load %s library to query for Nvidia GPUs: %s",
cuda_lib_path, msg);
free(msg);
resp->err = strdup(buf);
return;
}
for (i = 0; i < CUDA_LOOKUP_SIZE; i++) { // TODO - fix this to use a null terminated list
*l[i].p = LOAD_SYMBOL(resp->ch.handle, l[i].s);
if (!l[i].p) {
UNLOAD_LIBRARY(resp->ch.handle);
resp->ch.handle = NULL;
char *msg = LOAD_ERR();
snprintf(buf, buflen, "symbol lookup for %s failed: %s", l[i].s,
msg);
free(msg);
resp->err = strdup(buf);
return;
}
}
ret = (*resp->ch.initFn)();
if (ret != NVML_SUCCESS) {
UNLOAD_LIBRARY(resp->ch.handle);
resp->ch.handle = NULL;
snprintf(buf, buflen, "nvml vram init failure: %d", ret);
resp->err = strdup(buf);
}
// Report driver version if we're in verbose mode, ignore errors
ret = (*resp->ch.nvmlSystemGetDriverVersion)(buf, buflen);
if (ret != NVML_SUCCESS) {
LOG(resp->ch.verbose, "nvmlSystemGetDriverVersion failed: %d\n", ret);
} else {
LOG(resp->ch.verbose, "CUDA driver version: %s\n", buf);
}
}
void cuda_check_vram(cuda_handle_t h, mem_info_t *resp) {
resp->err = NULL;
nvmlDevice_t device;
nvmlMemory_t memInfo = {0};
nvmlReturn_t ret;
const int buflen = 256;
char buf[buflen + 1];
int i;
if (h.handle == NULL) {
resp->err = strdup("nvml handle sn't initialized");
return;
}
ret = (*h.getCount)(&resp->count);
if (ret != NVML_SUCCESS) {
snprintf(buf, buflen, "unable to get device count: %d", ret);
resp->err = strdup(buf);
return;
}
resp->total = 0;
resp->free = 0;
for (i = 0; i < resp->count; i++) {
ret = (*h.getHandle)(i, &device);
if (ret != NVML_SUCCESS) {
snprintf(buf, buflen, "unable to get device handle %d: %d", i, ret);
resp->err = strdup(buf);
return;
}
ret = (*h.getMemInfo)(device, &memInfo);
if (ret != NVML_SUCCESS) {
snprintf(buf, buflen, "device memory info lookup failure %d: %d", i, ret);
resp->err = strdup(buf);
return;
}
if (h.verbose) {
nvmlBrandType_t brand = 0;
// When in verbose mode, report more information about
// the card we discover, but don't fail on error
ret = (*h.nvmlDeviceGetName)(device, buf, buflen);
if (ret != RSMI_STATUS_SUCCESS) {
LOG(h.verbose, "nvmlDeviceGetName failed: %d\n", ret);
} else {
LOG(h.verbose, "[%d] CUDA device name: %s\n", i, buf);
}
ret = (*h.nvmlDeviceGetBoardPartNumber)(device, buf, buflen);
if (ret != RSMI_STATUS_SUCCESS) {
LOG(h.verbose, "nvmlDeviceGetBoardPartNumber failed: %d\n", ret);
} else {
LOG(h.verbose, "[%d] CUDA part number: %s\n", i, buf);
}
ret = (*h.nvmlDeviceGetSerial)(device, buf, buflen);
if (ret != RSMI_STATUS_SUCCESS) {
LOG(h.verbose, "nvmlDeviceGetSerial failed: %d\n", ret);
} else {
LOG(h.verbose, "[%d] CUDA S/N: %s\n", i, buf);
}
ret = (*h.nvmlDeviceGetVbiosVersion)(device, buf, buflen);
if (ret != RSMI_STATUS_SUCCESS) {
LOG(h.verbose, "nvmlDeviceGetVbiosVersion failed: %d\n", ret);
} else {
LOG(h.verbose, "[%d] CUDA vbios version: %s\n", i, buf);
}
ret = (*h.nvmlDeviceGetBrand)(device, &brand);
if (ret != RSMI_STATUS_SUCCESS) {
LOG(h.verbose, "nvmlDeviceGetBrand failed: %d\n", ret);
} else {
LOG(h.verbose, "[%d] CUDA brand: %d\n", i, brand);
}
}
LOG(h.verbose, "[%d] CUDA totalMem %ld\n", i, memInfo.total);
LOG(h.verbose, "[%d] CUDA usedMem %ld\n", i, memInfo.free);
resp->total += memInfo.total;
resp->free += memInfo.free;
}
}
void cuda_compute_capability(cuda_handle_t h, cuda_compute_capability_t *resp) {
resp->err = NULL;
resp->major = 0;
resp->minor = 0;
nvmlDevice_t device;
int major = 0;
int minor = 0;
nvmlReturn_t ret;
const int buflen = 256;
char buf[buflen + 1];
int i;
if (h.handle == NULL) {
resp->err = strdup("nvml handle not initialized");
return;
}
unsigned int devices;
ret = (*h.getCount)(&devices);
if (ret != NVML_SUCCESS) {
snprintf(buf, buflen, "unable to get device count: %d", ret);
resp->err = strdup(buf);
return;
}
for (i = 0; i < devices; i++) {
ret = (*h.getHandle)(i, &device);
if (ret != NVML_SUCCESS) {
snprintf(buf, buflen, "unable to get device handle %d: %d", i, ret);
resp->err = strdup(buf);
return;
}
ret = (*h.getComputeCapability)(device, &major, &minor);
if (ret != NVML_SUCCESS) {
snprintf(buf, buflen, "device compute capability lookup failure %d: %d", i, ret);
resp->err = strdup(buf);
return;
}
// Report the lowest major.minor we detect as that limits our compatibility
if (resp->major == 0 || resp->major > major ) {
resp->major = major;
resp->minor = minor;
} else if ( resp->major == major && resp->minor > minor ) {
resp->minor = minor;
}
}
}
#endif // __APPLE__