Function: value_write

Product	Supported
Atlas 350 Accelerator Card	√
Atlas A3 training product/Atlas A3 inference product	√
Atlas A2 training product/Atlas A2 inference product	√
Atlas training product	√
Atlas inference product	x
Atlas 200I/500 A2 inference product	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 the device memory in advance (for example, by calling acl.rt.malloc). dev_addr must be 8-byte aligned, and the valid memory bit width is 64bit.
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.

Parent topic: Memory Management