clinfo man page on DragonFly

Man page or keyword search:  
man Server   44335 pages
apropos Keyword Search (all sections)
Output format
DragonFly logo
[printable version]

CLINFO(1)							     CLINFO(1)

       clinfo - show OpenCL platforms and devices

       clinfo [options ...]

       clinfo  prints  all  available  information  about all OpenCL platforms
       available on the system and the devices they expose.

       clinfo accepts the following options:

	 produce human-friendly output; this is the default (except  as	 noted

	 produce  machine-friendly  output;  this  is the default if clinfo is
	 invoked with a name that contains the string “raw”;

	 shows also offline devices for platforms that expose this feature;

       -l, --list
	 list platforms and devices by name, with no (other) properties;

       -h, -?
	 show usage;

       --version, -v
	 show program version.

       OpenCL 1.1, OpenCL 1.2, OpenCL 2.0, OpenCL 2.1.

       Supported OpenCL extensions:

       cl_khr_fp16, cl_khr_fp64, cl_amd_fp64, cl_APPLE_fp64_basic_ops
	 for information about support for half-precision and double-precision
	 floating-point data types;

	 for  information  about the base address and pitch alignment require‐
	 ments of buffers to be used as base for 2D images;

	 for information about the supported SPIR (Standard Portable  Interme‐
	 diate Representation) versions;

	 for the suffix of vendor extensions functions;

	 for device fission support in OpenCL 1.1 devices;

	 for the atomic counter extension;

	 for AMD-specific device attributes;

	 to  show  offline  devices exposed by the platform, if requested (see
	 --offline option);

	 for Shared Virtual Memory (SVM) capabilities in OpenCL 1.2 devices;

	 for NVIDIA-specific device attributes;

	 for the Intel extension allowing CPU devices to run kernels  as  part
	 of the current host thread;

	 for the version of the Intel Motion Estimation accelerator version;

	 for  simultaneous  CL/GL/DirectX  context  sharing (only partial sup‐

	 for the Altera extension to query the core temperature of the device;

	 for the QUALCOMM extension to query page size and required padding in
	 external memory allocation.

       Some  information  is  duplicated when available from multiple sources.

       · supported device partition types and domains as  obtained  using  the
	 cl_ext_device_fission	extension  typically  match  the ones obtained
	 using the core OpenCL 1.2 device partition feature;

       · the preferred work-group size multiple matches the NVIDIA  warp  size
	 (on NVIDIA devices) or the AMD wavefront width (on AMD devices).

       Some floating-point configuration flags may only be meaningful for spe‐
       cific  precisions  and/or  specific  OpenCL  versions.	For   example,
       CL_FP_CORRECTLY_ROUNDED_DIVIDE_SQRT  is only relevant for single preci‐
       sion in OpenCL 1.2 devices.

       The implementation-defined behavior for NULL platform or context	 prop‐
       erties is tested for the following API calls:

	 by trying to show the platform name;

	 by  trying  to enumerate devices; the corresponding platform (if any)
	 is then detected by querying the device platform of the first device;

	 by trying to create a context from a device from  the	previous  list
	 (if any), and a context from a device from a different platform;

	 by trying to create contexts for each device type (except DEFAULT).

       Support for OpenCL 2.0 and OpenCL 2.1 properties is not fully tested.

       Raw  (machine-parsable)	output	is considered experimental, the output
       format might still undergo changes.

       The properties of the ICD loader will also be queried if the  clGetICD‐
       LoaderInfoOCLICD extension function is found.

       The highest OpenCL version supported by the ICD loader is detected with
       some trivial heuristics (symbols found); a notice is output if this  is
       lower than the highest platform OpenCL version, or if the detected ver‐
       sion doesn't match the one declared by the ICD loader itself.

       The CL_DEVICE_GLOBAL_FREE_MEMORY_AMD device information	is  documented
       in  v3  of the cl_amd_device_attribute_query extension specification as
       being the global free memory in KBytes, but no explanation is given  on
       why there are two values.

       The  CL_DEVICE_AVAILABLE_ASYNC_QUEUES_AMD  device  information is docu‐
       mented in v3 of the cl_amd_device_attribute_query extension  specifica‐
       tion, but not reported by current drivers, so it is currently disabled.

       The  CL_DEVICE_SIMULTANEOUS_INTEROPS_INTEL  device  information for the
       cl_intel_simultaneous_sharing extension is not reported, due to lack of
       knowledge on the possible values the list elements can have.

       Please	report	 any   issues	on   the  project  tracker  on	GitHub

clinfo		  2016-01-12			     CLINFO(1)

List of man pages available for DragonFly

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
Vote for polarhome
Free Shell Accounts :: the biggest list on the net