acltdtReceiveTensor

Product	Supported
Ascend 950PR/Ascend 950DT	√
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	√

Receives data from the device on the host.

aclError acltdtReceiveTensor(const acltdtChannelHandle *handle, acltdtDataset *dataset, int32_t timeout)

Parameter	Input/Output	Description
handle	Input	Channel. Call acltdtCreateChannel or acltdtCreateChannelWithCapacity to create data of the acltdtChannelHandle type in advance.
dataset	Output	Pointer to the data received from the device. For details about the type definition, see acltdtDataset.
timeout	Input	Wait timeout interval. The options are as follows: -1: blocking mode. Waiting continues until data reception is complete. 0: non-blocking mode. When the channels are empty, a corresponding error code is returned. In this case, you can set the retry interval. > 0: specified timeout interval, in ms. When the channels are empty, an error is returned after the timeout interval expires. The timeout interval varies with the operating system. The deviation is generally within a time slice of an operating system. For example, if the time slice of an operating system is 4 ms and the timeout interval is set to 1 ms, the actual timeout interval ranges from 1 ms to 5 ms. When the CPU load is high, the timeout interval may fluctuate.

Parameter

Input/Output

Description

handle

Input

Channel.

Call acltdtCreateChannel or acltdtCreateChannelWithCapacity to create data of the acltdtChannelHandle type in advance.

dataset

Output

Pointer to the data received from the device. For details about the type definition, see acltdtDataset.

timeout

Input

Wait timeout interval.

The options are as follows:

-1: blocking mode. Waiting continues until data reception is complete.
0: non-blocking mode. When the channels are empty, a corresponding error code is returned. In this case, you can set the retry interval.
> 0: specified timeout interval, in ms. When the channels are empty, an error is returned after the timeout interval expires.
The timeout interval varies with the operating system. The deviation is generally within a time slice of an operating system. For example, if the time slice of an operating system is 4 ms and the timeout interval is set to 1 ms, the actual timeout interval ranges from 1 ms to 5 ms. When the CPU load is high, the timeout interval may fluctuate.

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

Parent topic: Tensor Data Transfer