BigDFT

Problems with OpenCL

Asked by Jean-François Joly

Hi,

   I'm trying to get BigDFT to run using OpenCL on a Desktop running Ubuntu 14.04 and a Radeon HD 6450 card. I have OpenCL v2.8 installed (and tested) with the headers/library in the default folders (i.e. libOpenCL.so is in /usr/lib). Configuring/Compiling BigDFT with the --enable-opencl flag works but if I try to run the OpenCL test in tests/libs/OpenCL, the conv_check program stops with the error message "Error -11: Failed to build magicfilter program!". I don't know if I missed something during the configuration or if this is a bug.

Jean-Francois Joly

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Brice Videau (brice-videau) said : 		#1

Hello,

This GPU is very low-end and not suited for GPU computing.
See this series of benchmark for instance.
http://www.phoronix.com/scan.php?page=news_item&px=MTEwOTk

Besides, it does not support double precision floating point operations, see:
http://en.wikipedia.org/wiki/Radeon_HD_6000_Series

So it cannot be supported in BigDFT.

Sorry about that.

Best regards,

Brice

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