Number of Transforms¶
If you need to perform a large number of identical DFTs, you can do this in a single call to a compute* function with the value of this configuration parameter equal to the actual number of the transforms. The default value is 1. You can set this parameter to a positive integer value using the std::int64_t data type.
When setting the number of transforms to a value greater than one, you also need to specify the distance between the forward data sets and the distance between the backward data sets using the config_param::FWD_DISTANCE and config_param::BWD_DISTANCE configuration parameters corresponding to the specified domain.
Note
The data sets must not have common elements
All the sets of data in each domain must be located within the same memory block.
Parent topic Configuration Parameters and Enums