Product	Supported (√/x)
Ascend 950PR/Ascend 950DT	√
Atlas A3 training products/Atlas A3 inference products	√
Atlas A2 training products/Atlas A2 inference products	√
Atlas training products	x
Atlas inference products	x
Atlas 200I/500 A2 inference products	x

Writes data to the specified memory.

C Prototype

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

Python Function

ret = acl.rt.value_write(dev_addr, value, flag, stream)

Parameter	Description
dev_addr	Int, device memory address. You need to allocate device memory in advance (for example, by calling acl.rt.malloc). The value of dev_addr must be 8-byte aligned. The valid memory bit width is 64 bits.
value	Int, data to be written to the memory.
flag	Int, reserved; fixed at 0.
stream	Int, stream. The value 0 can be passed, indicating that the default stream is used.

Return Value	Description
ret	Int, error code. 0 on success; else, failure.

Function: value_write