Define settings for the Fast Polynomial Transformation.
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| type(ply_fpt_header_type), | intent(out) | :: | me | FPT header to hold the defined settings. |
||
| integer, | intent(in), | optional | :: | blocksize | Blocksize to use in approximation algorithm. Defaults to ply_fpt_default_blocksize. |
|
| real(kind=rk), | intent(in), | optional | :: | factor | Oversampling factor to use. This can be used to reduce aliasing when projecting functions that will be truncated in the polynomial series expansion. Default is a factor of 1, so no oversampling. |
|
| integer, | intent(in), | optional | :: | approx_terms | Number of approximation terms to use for the representation of the blocks in the Legendre to Chebyshev transformation algorithm. Defaults to ply_fpt_default_approx_terms. |
|
| integer, | intent(in), | optional | :: | implementation | Implementation to use in the computation. Select the implementation variant to use. Either scalar (ply_fpt_scalar) or vectorized (ply_fpt_vector). Default is ply_fpt_scalar. |
|
| integer, | intent(in), | optional | :: | striplen | Length of strips to use in the transformation implementation. Defaults to vlen. |
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| integer, | intent(in), | optional | :: | subBlockingWidth | Width for subblocks in unrolling the approximate Legendre to Chebyshev transformation. Defaults to ply_fpt_default_subblockingWidth. |
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| logical, | intent(in), | optional | :: | adapt_factor_pow2 | Adapt the oversampling factor such, that oversampled space has a number of degrees of freedoms in one direction that is a power of 2. Default is .false.. |
|
| logical, | intent(in), | optional | :: | lobattoPoints | Wether to use Chebyshev-Lobatto points (include boundary points) or not. Defaults to .false.. |