Coverage for cuda / core / _dlpack.pyx: 90.83%

1# SPDX-FileCopyrightText: Copyright (c) 2024-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved. (empty)

2# 

3# SPDX-License-Identifier: Apache-2.0 

4  

5from enum import IntEnum (empty)

6  

7  

8cdef void pycapsule_deleter(object capsule) noexcept: (empty)

9 cdef DLManagedTensor* dlm_tensor 

10 cdef DLManagedTensorVersioned* dlm_tensor_ver 

11 # Do not invoke the deleter on a used capsule. 

12 if cpython.PyCapsule_IsValid( 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

13 capsule, DLPACK_TENSOR_UNUSED_NAME): 

14 dlm_tensor = <DLManagedTensor*>( 1 ctx1a

15 cpython.PyCapsule_GetPointer( 1 ctx1a

16 capsule, DLPACK_TENSOR_UNUSED_NAME)) 

17 if dlm_tensor.deleter: 1 ctx1a

18 dlm_tensor.deleter(dlm_tensor) 1 ctx1a

19 elif cpython.PyCapsule_IsValid( 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

20 capsule, DLPACK_VERSIONED_TENSOR_UNUSED_NAME): 

21 dlm_tensor_ver = <DLManagedTensorVersioned*>( 1 ctx1a

22 cpython.PyCapsule_GetPointer( 1 ctx1a

23 capsule, DLPACK_VERSIONED_TENSOR_UNUSED_NAME)) 

24 if dlm_tensor_ver.deleter: 1 ctx1a

25 dlm_tensor_ver.deleter(dlm_tensor_ver) 1 ctx1a

26  

27  

28cdef void deleter(DLManagedTensor* tensor) noexcept with gil: (empty)

29 if tensor: 2 ctx19a

30 if tensor.dl_tensor.shape: 2 ctx19a

31 stdlib.free(tensor.dl_tensor.shape) 2 ctx19a

32 if tensor.manager_ctx: 2 ctx19a

33 cpython.Py_DECREF(<object>tensor.manager_ctx) 2 ctx19a

34 tensor.manager_ctx = NULL 2 ctx19a

35 stdlib.free(tensor) 2 ctx19a

36  

37  

38cdef void versioned_deleter(DLManagedTensorVersioned* tensor) noexcept with gil: (empty)

39 if tensor: 62 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012345679a8

40 if tensor.dl_tensor.shape: 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

41 stdlib.free(tensor.dl_tensor.shape) 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

42 if tensor.manager_ctx: 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

43 cpython.Py_DECREF(<object>tensor.manager_ctx) 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

44 tensor.manager_ctx = NULL 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

45 stdlib.free(tensor) 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

46  

47  

48cdef inline DLManagedTensorVersioned* allocate_dlm_tensor_versioned() except? NULL: (empty)

49 cdef DLManagedTensorVersioned* dlm_tensor_ver = NULL 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

50 try: 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

51 dlm_tensor_ver = <DLManagedTensorVersioned*>( 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

52 stdlib.malloc(sizeof(DLManagedTensorVersioned))) 

53 dlm_tensor_ver.dl_tensor.shape = NULL 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

54 dlm_tensor_ver.manager_ctx = NULL 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

55 return dlm_tensor_ver 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

56 except: 

57 if dlm_tensor_ver: 

58 stdlib.free(dlm_tensor_ver) 

59 raise 

60  

61  

62cdef inline DLManagedTensor* allocate_dlm_tensor() except? NULL: (empty)

63 cdef DLManagedTensor* dlm_tensor = NULL 2 ctx19a

64 try: 2 ctx19a

65 dlm_tensor = <DLManagedTensor*>( 2 ctx19a

66 stdlib.malloc(sizeof(DLManagedTensor))) 

67 dlm_tensor.dl_tensor.shape = NULL 2 ctx19a

68 dlm_tensor.manager_ctx = NULL 2 ctx19a

69 return dlm_tensor 2 ctx19a

70 except: 

71 if dlm_tensor: 

72 stdlib.free(dlm_tensor) 

73 raise 

74  

75  

76cdef inline int setup_dl_tensor_layout(DLTensor* dl_tensor, object buf) except -1: (empty)

77 dl_tensor.ndim = 1 62 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012345679a8

78 cdef int64_t* shape_strides = \ 

79 <int64_t*>stdlib.malloc(sizeof(int64_t) * 2) 62 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012345679a8

80 if shape_strides == NULL: 62 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012345679a8

81 raise MemoryError() 

82 # DLPack v1.2+ requires non-NULL strides for ndim != 0. 

83 shape_strides[0] = <int64_t>buf.size 62 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012345679a8

84 shape_strides[1] = 1 62 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012345679a8

85 dl_tensor.shape = shape_strides 62 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012345679a8

86 dl_tensor.strides = shape_strides + 1 62 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012345679a8

87 dl_tensor.byte_offset = 0 62 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012345679a8

88 return 0 62 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012345679a8

89  

90  

91cdef inline int setup_dl_tensor_device(DLTensor* dl_tensor, object buf) except -1: (empty)

92 cdef DLDevice* device = &dl_tensor.device 62 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012345679a8

93 # buf should be a Buffer instance 

94 if buf.is_device_accessible and not buf.is_host_accessible: 62 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012345679a8

95 device.device_type = _kDLCUDA 1 ctx1a

96 device.device_id = buf.device_id 1 ctx1a

97 elif buf.is_device_accessible and buf.is_host_accessible: 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456798

98 device.device_type = _kDLCUDAHost 60 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012345678

99 device.device_id = 0 60 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012345678

100 elif not buf.is_device_accessible and buf.is_host_accessible: 1 ctx19

101 device.device_type = _kDLCPU 

102 device.device_id = 0 

103 else: # not buf.is_device_accessible and not buf.is_host_accessible 

104 raise BufferError("invalid buffer") 1 ctx19

105 return 0 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

106  

107  

108cdef inline int setup_dl_tensor_dtype(DLTensor* dl_tensor) except -1 nogil: (empty)

109 cdef DLDataType* dtype = &dl_tensor.dtype 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

110 dtype.code = <uint8_t>kDLInt 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

111 dtype.lanes = <uint16_t>1 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

112 dtype.bits = <uint8_t>8 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

113 return 0 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

114  

115  

116cpdef object make_py_capsule(object buf, bint versioned): (empty)

117 cdef DLManagedTensor* dlm_tensor = NULL 62 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012345679a8

118 cdef DLManagedTensorVersioned* dlm_tensor_ver = NULL 62 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012345679a8

119 cdef DLTensor* dl_tensor 

120 cdef void* tensor_ptr 

121 cdef const char* capsule_name 

122 cdef object ret = None 62 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012345679a8

123  

124 try: 62 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012345679a8

125 if versioned: 62 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012345679a8

126 dlm_tensor_ver = allocate_dlm_tensor_versioned() 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

127 # Transfer the reference to manager_ctx 

128 cpython.Py_INCREF(buf) 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

129 dlm_tensor_ver.manager_ctx = <void*>buf 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

130 dlm_tensor_ver.deleter = versioned_deleter 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

131 dlm_tensor_ver.version.major = DLPACK_MAJOR_VERSION 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

132 dlm_tensor_ver.version.minor = DLPACK_MINOR_VERSION 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

133 dlm_tensor_ver.flags = 0 62 ctx1!bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

134 dl_tensor = &dlm_tensor_ver.dl_tensor 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

135 tensor_ptr = dlm_tensor_ver 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

136 capsule_name = DLPACK_VERSIONED_TENSOR_UNUSED_NAME 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

137 else: 

138 dlm_tensor = allocate_dlm_tensor() 2 ctx19a

139 # Transfer the reference to manager_ctx 

140 cpython.Py_INCREF(buf) 2 ctx19a

141 dlm_tensor.manager_ctx = <void*>buf 2 ctx19a

142 dlm_tensor.deleter = deleter 2 ctx19a

143 dl_tensor = &dlm_tensor.dl_tensor 2 ctx19a

144 tensor_ptr = dlm_tensor 2 ctx19a

145 capsule_name = DLPACK_TENSOR_UNUSED_NAME 2 ctx19a

146  

147 dl_tensor.data = <void*><intptr_t>(int(buf.handle)) 62 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012345679a8

148 setup_dl_tensor_layout(dl_tensor, buf) 62 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012345679a8

149 setup_dl_tensor_device(dl_tensor, buf) 62 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012345679a8

150 setup_dl_tensor_dtype(dl_tensor) 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

151 ret = cpython.PyCapsule_New(tensor_ptr, capsule_name, pycapsule_deleter) 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

152 except: 1 ctx19

153 if ret is None: 1 ctx19

154 deleter(dlm_tensor) 1 ctx19

155 versioned_deleter(dlm_tensor_ver) 1 ctx19

156 raise 1 ctx19

157 return ret 61 ctx1bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567a8

158  

159  

160class DLDeviceType(IntEnum): (empty)

161 kDLCPU = _kDLCPU (empty)

162 kDLCUDA = _kDLCUDA (empty)

163 kDLCUDAHost = _kDLCUDAHost (empty)

164 kDLCUDAManaged = _kDLCUDAManaged (empty)