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chandrasekhar92's avatar
chandrasekhar92
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2 years ago
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Intel FPGA SDK for OpenCL: Issue while launching same opencl kernel multiple times

Hi, I am using Intel FPGA SDK for OpenCL to perform matrix multiplication on DE1-SoC board. As per my requirement I have to perform this multiplication multiple times and hence iterating over a loop...
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  • BoonBengT_Altera's avatar
    BoonBengT_Altera
    2 years ago

    Hi @chandrasekhar92,


    Noted that there seems to be a custom BSP involved. Is it correct to say there is no references design you are referring to and sample code are based on self written?


    After going through the situation, using clWaitForEvents to synchronize kernels in separate queues are working from previous experiences. Would recommend to try clFinish() which has similar purposes to see if that works.


    Also for the mention situation, it seem that the desire execution flow are out of order, hence below links would also explain that:

    - https://www.intel.cn/content/www/cn/zh/developer/articles/technical/opencl-out-of-order-queue-on-intel-processor-graphics.html


    Note: link mention are for example with GPU as the hardware, however the execution concept are the same.


    Best Wishes

    BB


BoonBengT_Altera's avatar
BoonBengT_Altera
Icon for Moderator rankModerator
2 years ago

Hi @chandrasekhar92,


Thank you for posting in Intel community forum, hope all is well and apologies for the delayed in response.

As Intel OpenCL has been deprecated, hence we would try our best to support on the mention issues.


Is there any references design that you are referring to? Also can you share what are the compilation/build command used for us to check further?

Hope to hear from you soon.


Best Wishes

BB