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