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# OpenCL

OpenCL is a technology to speed up calculation on large spreadsheets.

To access this command...

Choose LibreOffice - Preferences Tools - Options - LibreOffice - OpenCL.

OpenCL™ is the first open, royalty-free standard for cross-platform, parallel programming of modern processors found in personal computers, servers and handheld/embedded devices. OpenCL (Open Computing Language) greatly improves speed and responsiveness for a wide spectrum of applications in numerous market categories from gaming and entertainment to scientific and medical software

for more information on OpenCL, visit the OpenCL site

By default, OpenCL is enabled in LibreOffice . While enabled, OpenCL takes advantage of a device’s GPU (graphics processing unit) for faster performance time during calculations. This is helpful when working with large spreadsheets in LibreOffice Calc that require calculations on large sets of data.

## OpenCL Options

If OpenCL is already enabled, the dialog displays OpenCL is available for use. If OpenCL is not currently enabled, the displays OpenCL is not used.

### Allow Use of OpenCL

Select or deselect this checkbox to enable or disable OpenCL. Select Apply or OK to update settings. In order for any changes to take effect, LibreOffice must be restarted.

OpenCL depends on the availability of working drivers for your computer hardware. If OpenCL is not enabled by default, the drivers are not in working state, they may not exist or they are not installed.