Applications/Fftw3 - Revision history

Pysdlb: /* Further Information */

2022-11-16T11:05:25Z

‎Further Information

Pysdlb: Pysdlb moved page Fftw3 to Applications/Fftw3 without leaving a redirect

2017-04-19T13:14:02Z

Pysdlb moved page Fftw3 to Applications/Fftw3 without leaving a redirect

Pysdlb at 13:13, 19 April 2017

2017-04-19T13:13:14Z

Pysdlb: Created page with "TOC ==Application Details== *Description: FFTW is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions, of arbitrary input..."

2017-04-19T13:11:49Z

Created page with "__TOC__ ==Application Details== *Description: FFTW is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions, of arbitrary input..."

New page

__TOC__

==Application Details==
*Description: FFTW is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions, of arbitrary input size, and of both real and complex data
*Version: 3.3.5 (compiled with gcc)
*Module: fftw3/gcc/3.3.5
*Licence: GNU

==Usage==

FFTW is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions, of arbitrary input size, and of both real and complex data (as well as of even/odd data, i.e. the discrete cosine/sine transforms or DCT/DST).

===Module===
<pre style="background-color: #000000; color: white; border: 2px solid black; font-family: monospace, sans-serif;">
[username@login01 ~]$ module add fftw3/gcc/3.3.5
</pre>

===Compilation===

''boost'' is a library for use either with a compiled binary that requires it, or it could be required at compilation time also.

A typical code snippet requiring is shown below:

<pre style="background-color: #f5f5dc; color: black; font-family: monospace, sans-serif;">

#include <fftw3.h>
...
{
fftw_complex *in, *out;
fftw_plan p;
...
in = (fftw_complex*) fftw_malloc(sizeof(fftw_complex) * N);
out = (fftw_complex*) fftw_malloc(sizeof(fftw_complex) * N);
p = fftw_plan_dft_1d(N, in, out, FFTW_FORWARD, FFTW_ESTIMATE);
...
fftw_execute(p); /* repeat as needed */
...
fftw_destroy_plan(p);
fftw_free(in); fftw_free(out);
}

</pre>

You must link this code with the fftw3 library. On '''Viper''', link with '''-lfftw3 -lm'''.

==Further Information==

* [http://www.fftw.org/ http://www.fftw.org/]

{|
|style="width:5%; border-width: 0" | [[File:icon_home.png]]
|style="width:95%; border-width: 0" |
* [[Main_Page|Home]]
* [[Applications|Application support]]
* [[General|General]]
* [[Training|Training]]
* [[Programming|Programming support]]
|-
|}

← Older revision		Revision as of 11:05, 16 November 2022
Line 50:		Line 50:
	* [http://www.fftw.org/ http://www.fftw.org/]		* [http://www.fftw.org/ http://www.fftw.org/]

−	{\|	+	{{Librariespagenav}}
−	~~\|style="width:5%; border-width: 0" \| [[File:icon_home.png]]~~
−	~~\|style="width:95%; border-width: 0" \|~~
−	* [[Main_Page\|Home]]
−	* [[Applications\|Application support]]
−	* [[General\|General]]
−	* [[Training\|Training]]
−	* [[Programming\|Programming support]]
−	\|-
−	\|}

← Older revision	Revision as of 13:14, 19 April 2017
(No difference)

@@ Line 18: / Line 18: @@
 ===Compilation===
-''boost'' is a library for use either with a compiled binary that requires it, or it could be required at compilation time also.
+''fftw3'' is a library required at compilation time.
 A typical code snippet requiring is shown below:

Applications/Fftw3 - Revision history

Pysdlb: /* Further Information */

Pysdlb: Pysdlb moved page Fftw3 to Applications/Fftw3 without leaving a redirect

Pysdlb at 13:13, 19 April 2017

Pysdlb: Created page with "__TOC__ ==Application Details== *Description: FFTW is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions, of arbitrary input..."

Pysdlb: Created page with "TOC ==Application Details== *Description: FFTW is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions, of arbitrary input..."