Data Structures | |
struct | nfst_plan_ |
Structure for a transform plan. More... | |
Typedefs | |
typedef nfst_plan_ | nfst_plan |
Structure for a transform plan. | |
Functions | |
void | nfst_init_1d (nfst_plan *ths_plan, int N0, int M_total) |
Creates a 1-dimensional transform plan. | |
void | nfst_init_2d (nfst_plan *ths_plan, int N0, int N1, int M_total) |
Creates a 3-dimensional transform plan. | |
void | nfst_init_3d (nfst_plan *ths_plan, int N0, int N1, int N2, int M_total) |
Creates a 3-dimensional transform plan. | |
void | nfst_init (nfst_plan *ths_plan, int d, int *N, int M_total) |
Creates a d-dimensional transform plan. | |
void | nfst_init_m (nfst_plan *ths_plan, int d, int *N, int M_total, int m) |
Creates a d-dimensional transform plan with pcific m. | |
void | nfst_init_guru (nfst_plan *ths_plan, int d, int *N, int M_total, int *n, int m, unsigned nfst_flags, unsigned fftw_flags) |
Creates a d-dimensional transform plan. | |
void | nfst_precompute_psi (nfst_plan *ths_plan) |
precomputes the values psi if the PRE_PSI is set the application program has to call this routine after setting the nodes this_plan->x | |
void | nfst_trafo (nfst_plan *ths_plan) |
executes a NFST (approximate,fast), computes for ![]() ![]() | |
void | ndst_trafo (nfst_plan *ths_plan) |
executes a NDST (exact,slow), computes for ![]() ![]() | |
void | nfst_adjoint (nfst_plan *ths_plan) |
executes a transposed NFST (approximate,fast), computes for ![]() ![]() | |
void | ndst_adjoint (nfst_plan *ths_plan) |
executes a direct transposed NDST (exact,slow), computes for ![]() ![]() | |
void | nfst_finalize (nfst_plan *ths_plan) |
Destroys a plan. | |
void | nfst_full_psi (nfst_plan *ths_plan, double eps) |
more memory usage, a bit faster | |
double | nfst_phi_hut (nfst_plan *ths_plan, int k, int d) |
do some adjustments (N,n) then compute PHI_HUT | |
double | nfst_phi (nfst_plan *ths_plan, double x, int d) |
do some adjustments (N,n) then compute PHI | |
int | nfst_fftw_2N (int n) |
returns 2(n+1), fftw related issue | |
int | nfst_fftw_2N_rev (int n) |
returns 0.5n-1, fftw related issue |
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executes a direct transposed NDST (exact,slow), computes for
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executes a NDST (exact,slow), computes for
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executes a transposed NFST (approximate,fast), computes for use ths->my_fftw_plan
set
compute by d-variate discrete cosine transform
form |
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returns 2(n+1), fftw related issue
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returns 0.5n-1, fftw related issue
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Destroys a plan.
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more memory usage, a bit faster < index over all dimensions < index over all nodes < plain index 0<=l_L<lprod < multi index 0<=lj<u+o+1 < postfix plain index < 'bandwidth' of matrix B < depends on x_j |
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Creates a d-dimensional transform plan. < index over all dimensions |
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Creates a 1-dimensional transform plan.
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Creates a 3-dimensional transform plan.
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Creates a 3-dimensional transform plan.
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Creates a d-dimensional transform plan. < index over all dimensions |
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Creates a d-dimensional transform plan with pcific m. (just for convenience)
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do some adjustments (N,n) then compute PHI
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do some adjustments (N,n) then compute PHI_HUT
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precomputes the values psi if the PRE_PSI is set the application program has to call this routine after setting the nodes this_plan->x < index over all dimensions < index over all nodes < index 0<=lj<u+o+1 < depends on x_j |
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executes a NFST (approximate,fast), computes for
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