243 lines
No EOL
7.2 KiB
C
243 lines
No EOL
7.2 KiB
C
#ifndef __APPLE__ // TODO - maybe consider nvidia support on intel macs?
|
|
|
|
#include <string.h>
|
|
#include "gpu_info_nvcuda.h"
|
|
|
|
void nvcuda_init(char *nvcuda_lib_path, nvcuda_init_resp_t *resp) {
|
|
CUresult ret;
|
|
resp->err = NULL;
|
|
resp->num_devices = 0;
|
|
resp->cudaErr = CUDA_SUCCESS;
|
|
const int buflen = 256;
|
|
char buf[buflen + 1];
|
|
int i;
|
|
|
|
struct lookup {
|
|
char *s;
|
|
void **p;
|
|
} l[] = {
|
|
|
|
{"cuInit", (void *)&resp->ch.cuInit},
|
|
{"cuDriverGetVersion", (void *)&resp->ch.cuDriverGetVersion},
|
|
{"cuDeviceGetCount", (void *)&resp->ch.cuDeviceGetCount},
|
|
{"cuDeviceGet", (void *)&resp->ch.cuDeviceGet},
|
|
{"cuDeviceGetAttribute", (void *)&resp->ch.cuDeviceGetAttribute},
|
|
{"cuDeviceGetUuid", (void *)&resp->ch.cuDeviceGetUuid},
|
|
{"cuDeviceGetName", (void *)&resp->ch.cuDeviceGetName},
|
|
{"cuCtxCreate_v3", (void *)&resp->ch.cuCtxCreate_v3},
|
|
{"cuMemGetInfo_v2", (void *)&resp->ch.cuMemGetInfo_v2},
|
|
{"cuCtxDestroy", (void *)&resp->ch.cuCtxDestroy},
|
|
{NULL, NULL},
|
|
};
|
|
|
|
resp->ch.handle = LOAD_LIBRARY(nvcuda_lib_path, RTLD_LAZY);
|
|
if (!resp->ch.handle) {
|
|
char *msg = LOAD_ERR();
|
|
LOG(resp->ch.verbose, "library %s load err: %s\n", nvcuda_lib_path, msg);
|
|
snprintf(buf, buflen,
|
|
"Unable to load %s library to query for Nvidia GPUs: %s",
|
|
nvcuda_lib_path, msg);
|
|
free(msg);
|
|
resp->err = strdup(buf);
|
|
resp->cudaErr = -1;
|
|
return;
|
|
}
|
|
|
|
for (i = 0; l[i].s != NULL; i++) {
|
|
*l[i].p = LOAD_SYMBOL(resp->ch.handle, l[i].s);
|
|
if (!*(l[i].p)) {
|
|
char *msg = LOAD_ERR();
|
|
LOG(resp->ch.verbose, "dlerr: %s\n", msg);
|
|
UNLOAD_LIBRARY(resp->ch.handle);
|
|
resp->ch.handle = NULL;
|
|
snprintf(buf, buflen, "symbol lookup for %s failed: %s", l[i].s,
|
|
msg);
|
|
free(msg);
|
|
resp->err = strdup(buf);
|
|
resp->cudaErr = -1;
|
|
return;
|
|
}
|
|
}
|
|
|
|
ret = (*resp->ch.cuInit)(0);
|
|
if (ret != CUDA_SUCCESS) {
|
|
LOG(resp->ch.verbose, "cuInit err: %d\n", ret);
|
|
UNLOAD_LIBRARY(resp->ch.handle);
|
|
resp->ch.handle = NULL;
|
|
snprintf(buf, buflen, "cuda driver library init failure: %d", ret);
|
|
resp->err = strdup(buf);
|
|
resp->cudaErr = ret;
|
|
return;
|
|
}
|
|
|
|
int version = 0;
|
|
resp->ch.driver_major = 0;
|
|
resp->ch.driver_minor = 0;
|
|
|
|
// Report driver version if we're in verbose mode, ignore errors
|
|
ret = (*resp->ch.cuDriverGetVersion)(&version);
|
|
if (ret != CUDA_SUCCESS) {
|
|
LOG(resp->ch.verbose, "cuDriverGetVersion failed: %d\n", ret);
|
|
} else {
|
|
resp->ch.driver_major = version / 1000;
|
|
resp->ch.driver_minor = (version - (resp->ch.driver_major * 1000)) / 10;
|
|
LOG(resp->ch.verbose, "CUDA driver version: %d.%d\n", resp->ch.driver_major, resp->ch.driver_minor);
|
|
}
|
|
|
|
ret = (*resp->ch.cuDeviceGetCount)(&resp->num_devices);
|
|
if (ret != CUDA_SUCCESS) {
|
|
LOG(resp->ch.verbose, "cuDeviceGetCount err: %d\n", ret);
|
|
UNLOAD_LIBRARY(resp->ch.handle);
|
|
resp->ch.handle = NULL;
|
|
snprintf(buf, buflen, "unable to get device count: %d", ret);
|
|
resp->err = strdup(buf);
|
|
resp->cudaErr = ret;
|
|
return;
|
|
}
|
|
}
|
|
|
|
const int buflen = 256;
|
|
void nvcuda_bootstrap(nvcuda_handle_t h, int i, mem_info_t *resp) {
|
|
resp->err = NULL;
|
|
nvcudaMemory_t memInfo = {0,0};
|
|
CUresult ret;
|
|
CUdevice device = -1;
|
|
CUcontext ctx = NULL;
|
|
char buf[buflen + 1];
|
|
CUuuid uuid = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
|
|
|
|
if (h.handle == NULL) {
|
|
resp->err = strdup("cuda driver library handle isn't initialized");
|
|
return;
|
|
}
|
|
|
|
ret = (*h.cuDeviceGet)(&device, i);
|
|
if (ret != CUDA_SUCCESS) {
|
|
snprintf(buf, buflen, "cuda driver library device failed to initialize");
|
|
resp->err = strdup(buf);
|
|
return;
|
|
}
|
|
|
|
int major = 0;
|
|
int minor = 0;
|
|
ret = (*h.cuDeviceGetAttribute)(&major, CU_DEVICE_ATTRIBUTE_COMPUTE_CAPABILITY_MAJOR, device);
|
|
if (ret != CUDA_SUCCESS) {
|
|
LOG(h.verbose, "[%d] device major lookup failure: %d\n", i, ret);
|
|
} else {
|
|
ret = (*h.cuDeviceGetAttribute)(&minor, CU_DEVICE_ATTRIBUTE_COMPUTE_CAPABILITY_MINOR, device);
|
|
if (ret != CUDA_SUCCESS) {
|
|
LOG(h.verbose, "[%d] device minor lookup failure: %d\n", i, ret);
|
|
} else {
|
|
resp->minor = minor;
|
|
resp->major = major;
|
|
}
|
|
}
|
|
|
|
ret = (*h.cuDeviceGetUuid)(&uuid, device);
|
|
if (ret != CUDA_SUCCESS) {
|
|
LOG(h.verbose, "[%d] device uuid lookup failure: %d\n", i, ret);
|
|
snprintf(&resp->gpu_id[0], GPU_ID_LEN, "%d", i);
|
|
} else {
|
|
// GPU-d110a105-ac29-1d54-7b49-9c90440f215b
|
|
snprintf(&resp->gpu_id[0], GPU_ID_LEN,
|
|
"GPU-%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
|
|
uuid.bytes[0],
|
|
uuid.bytes[1],
|
|
uuid.bytes[2],
|
|
uuid.bytes[3],
|
|
uuid.bytes[4],
|
|
uuid.bytes[5],
|
|
uuid.bytes[6],
|
|
uuid.bytes[7],
|
|
uuid.bytes[8],
|
|
uuid.bytes[9],
|
|
uuid.bytes[10],
|
|
uuid.bytes[11],
|
|
uuid.bytes[12],
|
|
uuid.bytes[13],
|
|
uuid.bytes[14],
|
|
uuid.bytes[15]
|
|
);
|
|
}
|
|
|
|
ret = (*h.cuDeviceGetName)(&resp->gpu_name[0], GPU_NAME_LEN, device);
|
|
if (ret != CUDA_SUCCESS) {
|
|
LOG(h.verbose, "[%d] device name lookup failure: %d\n", i, ret);
|
|
resp->gpu_name[0] = '\0';
|
|
}
|
|
|
|
// To get memory we have to set (and release) a context
|
|
ret = (*h.cuCtxCreate_v3)(&ctx, NULL, 0, 0, device);
|
|
if (ret != CUDA_SUCCESS) {
|
|
snprintf(buf, buflen, "cuda driver library failed to get device context %d", ret);
|
|
resp->err = strdup(buf);
|
|
return;
|
|
}
|
|
|
|
ret = (*h.cuMemGetInfo_v2)(&memInfo.free, &memInfo.total);
|
|
if (ret != CUDA_SUCCESS) {
|
|
snprintf(buf, buflen, "cuda driver library device memory info lookup failure %d", ret);
|
|
resp->err = strdup(buf);
|
|
// Best effort on failure...
|
|
(*h.cuCtxDestroy)(ctx);
|
|
return;
|
|
}
|
|
|
|
resp->total = memInfo.total;
|
|
resp->free = memInfo.free;
|
|
|
|
LOG(h.verbose, "[%s] CUDA totalMem %lu mb\n", resp->gpu_id, resp->total / 1024 / 1024);
|
|
LOG(h.verbose, "[%s] CUDA freeMem %lu mb\n", resp->gpu_id, resp->free / 1024 / 1024);
|
|
LOG(h.verbose, "[%s] Compute Capability %d.%d\n", resp->gpu_id, resp->major, resp->minor);
|
|
|
|
|
|
|
|
ret = (*h.cuCtxDestroy)(ctx);
|
|
if (ret != CUDA_SUCCESS) {
|
|
LOG(1, "cuda driver library failed to release device context %d", ret);
|
|
}
|
|
}
|
|
|
|
void nvcuda_get_free(nvcuda_handle_t h, int i, uint64_t *free, uint64_t *total) {
|
|
CUresult ret;
|
|
CUcontext ctx = NULL;
|
|
CUdevice device = -1;
|
|
*free = 0;
|
|
*total = 0;
|
|
|
|
ret = (*h.cuDeviceGet)(&device, i);
|
|
if (ret != CUDA_SUCCESS) {
|
|
LOG(1, "cuda driver library device failed to initialize");
|
|
return;
|
|
}
|
|
|
|
|
|
// To get memory we have to set (and release) a context
|
|
ret = (*h.cuCtxCreate_v3)(&ctx, NULL, 0, 0, device);
|
|
if (ret != CUDA_SUCCESS) {
|
|
LOG(1, "cuda driver library failed to get device context %d", ret);
|
|
return;
|
|
}
|
|
|
|
ret = (*h.cuMemGetInfo_v2)(free, total);
|
|
if (ret != CUDA_SUCCESS) {
|
|
LOG(1, "cuda driver library device memory info lookup failure %d", ret);
|
|
// Best effort on failure...
|
|
(*h.cuCtxDestroy)(ctx);
|
|
return;
|
|
}
|
|
|
|
ret = (*h.cuCtxDestroy)(ctx);
|
|
if (ret != CUDA_SUCCESS) {
|
|
LOG(1, "cuda driver library failed to release device context %d", ret);
|
|
}
|
|
}
|
|
|
|
void nvcuda_release(nvcuda_handle_t h) {
|
|
LOG(h.verbose, "releasing cuda driver library\n");
|
|
UNLOAD_LIBRARY(h.handle);
|
|
// TODO and other context release logic?
|
|
h.handle = NULL;
|
|
}
|
|
|
|
#endif // __APPLE__
|