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[RUNTIME] Fix the function lookup problem for CUDA 11 driver #4335

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Merged
ptillet merged 1 commit into from
Jul 17, 2024
Merged

[RUNTIME] Fix the function lookup problem for CUDA 11 driver #4335

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30 changes: 18 additions & 12 deletions third_party/nvidia/backend/driver.c
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,17 @@ static bool gpuAssert(CUresult code, const char *file, int line) {
} \
} while (0)

// Used to check if functions exist in old CUDA driver versions.
#define INITIALIZE_FUNCTION_POINTER_IF_NULL(funcPointer, initializerFunction) \
do { \
if ((funcPointer) == NULL) { \
(funcPointer) = (initializerFunction)(); \
if ((funcPointer) == NULL) { \
return NULL; \
} \
} \
} while (0)

static PyObject *getDeviceProperties(PyObject *self, PyObject *args) {
int device_id;
if (!PyArg_ParseTuple(args, "i", &device_id))
Expand Down Expand Up @@ -215,12 +226,8 @@ static PyObject *occupancyMaxActiveClusters(PyObject *self, PyObject *args) {
config.attrs = launchAttr;

static cuOccupancyMaxActiveClusters_t cuOccupancyMaxActiveClusters = NULL;
if (cuOccupancyMaxActiveClusters == NULL) {
cuOccupancyMaxActiveClusters = getCuOccupancyMaxActiveClustersHandle();
if (cuOccupancyMaxActiveClusters == NULL) {
return NULL;
}
}
INITIALIZE_FUNCTION_POINTER_IF_NULL(cuOccupancyMaxActiveClusters,
getCuOccupancyMaxActiveClustersHandle);

Py_BEGIN_ALLOW_THREADS;
CUDA_CHECK_AND_RETURN_NULL_ALLOW_THREADS(cuFuncSetAttribute(
Expand Down Expand Up @@ -303,12 +310,8 @@ static PyObject *fill1DTMADescriptor(PyObject *self, PyObject *args) {
assert((elementSize * tensorDim) >= 32 && "block size too small.");
int rank = 1;
static cuTensorMapEncodeTiled_t cuTensorMapEncodeTiled = NULL;
if (cuTensorMapEncodeTiled == NULL) {
cuTensorMapEncodeTiled = getCuTensorMapEncodeTiledHandle();
if (cuTensorMapEncodeTiled == NULL) {
return NULL;
}
}
INITIALIZE_FUNCTION_POINTER_IF_NULL(cuTensorMapEncodeTiled,
getCuTensorMapEncodeTiledHandle);
CUresult result = cuTensorMapEncodeTiled(
(CUtensorMap *)desc_address, type, rank, (void *)global_address, dims,
globalStrides, boxDim, elementStrides, CU_TENSOR_MAP_INTERLEAVE_NONE,
Expand Down Expand Up @@ -369,6 +372,9 @@ static PyObject *fill2DTMADescriptor(PyObject *self, PyObject *args) {
if (contigDimSizeInByte > 128) {
tensorDims[0] = 128 / elementSize;
}
static cuTensorMapEncodeTiled_t cuTensorMapEncodeTiled = NULL;
INITIALIZE_FUNCTION_POINTER_IF_NULL(cuTensorMapEncodeTiled,
getCuTensorMapEncodeTiledHandle);
CUresult result = cuTensorMapEncodeTiled(
(CUtensorMap *)desc_address, type, rank, (void *)global_address, dims,
globalStrides, tensorDims, elementStrides, CU_TENSOR_MAP_INTERLEAVE_NONE,
Expand Down