---
name: "clFFT-client"
section: "1"
platform: "linux"
package: "clfft-client"
version: "2.12.2-5+b2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/clFFT-client"
---

# clFFT-client(1)

program to test the various options of the OpenCL FFT library on various devices, dimensions or precision ...

## NAME

clFFT-client - program to test the various options of the  OpenCL FFT library on various devices, dimensions or precision ...

## DESCRIPTION

### clFFT client command line options:

- **-h** \[ **--help** \]

  produces this help message

- **-v** \[ **--version** \]

  Print queryable version information from the clFFT library

- **-i** \[ **--clInfo** \]

  Print queryable information of the OpenCL runtime

- **-g** \[ **--gpu** \]

  Force instantiation of an OpenCL GPU device

- **-c** \[ **--cpu** \]

  Force instantiation of an OpenCL CPU device

- **-a** \[ **--all** \]

  Force instantiation of all OpenCL devices

- **-o** \[ **--outPlace** \]

  Out of place FFT transform (default: in place)

- **--double**

  Double precision transform (default: single)

- **--inv**

  Backward transform (default: forward)

- **-d** \[ **--dumpKernels** \]

  FFT engine will dump generated OpenCL FFT kernels to disk (default: dump off)

- **-x** \[ **--lenX** \] arg (=1024)

  Specify the length of the 1st dimension of a test array

- **-y** \[ **--lenY** \] arg (=1)

  Specify the length of the 2nd dimension of a test array

- **-z** \[ **--lenZ** \] arg (=1)

  Specify the length of the 3rd dimension of a test array

- **--isX** arg (=1)

  Specify the input stride of the 1st dimension of a test array

- **--isY** arg (=0)

  Specify the input stride of the 2nd dimension of a test array

- **--isZ** arg (=0)

  Specify the input stride of the 3rd dimension of a test array

- **--iD** arg (=0)

  input distance between subsequent sets of data when batch size \> 1

- **--osX** arg (=1)

  Specify the output stride of the 1st dimension of a test array

- **--osY** arg (=0)

  Specify the output stride of the 2nd dimension of a test array

- **--osZ** arg (=0)

  Specify the output stride of the 3rd dimension of a test array

- **--oD** arg (=0)

  output distance between subsequent sets of data when batch size \> 1

- **-b** \[ **--batchSize** \] arg (=1) If this value is greater than one, arrays will be

  used

- **-p** \[ **--profile** \] arg (=1)

  Time and report the kernel speed of the FFT (default: profiling off)

- **--inLayout** arg (=1)

  Layout of input data: 1) interleaved 2) planar 3) hermitian interleaved 4) hermitian planar 5) real

- **--outLayout** arg (=1)

  Layout of input data: 1) interleaved 2) planar 3) hermitian interleaved 4) hermitian planar 5) real

clFFT runtime version:     2.4.0

-

  Internal Client Test \*\*\*\*\*PASS\*\*\*\*\*