aclrtValueWrite

Product	Supported
Atlas A3 training products/Atlas A3 inference products	√
Atlas A2 training products/Atlas A2 inference products	√
Atlas 200I/500 A2 inference products	☓
Atlas inference products	☓
Atlas training products	☓

Writes data to the specified memory. This API is asynchronous.

aclError aclrtValueWrite(void* devAddr, uint64_t value, uint32_t flag, aclrtStream stream)

Parameter	Input/Output	Description
devAddr	Input	Memory address on the device. You need to allocate device memory in advance (for example, by calling aclrtMalloc). The value of devAddr must be 8-byte aligned. The valid memory bit width is 64 bits.
value	Input	Data to be written to the memory.
flag	Input	Reserved. The value is fixed at 0.
stream	Input	Stream for executing the data write task. The value NULL is supported, indicating that the default stream is used.

0 on success; else, failure. For details, see aclError.

Parent topic: Memory Management