How to obtain a valid license of FPGA SDK for OpenCL

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v17.1 does not require an OpenCL license. For earlier versions, you either have to buy a license, or if you are university student, you can ask your supervisor to join Altera/Intel's university program through which you can get free licenses.

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if my supervisor join altera's university program which i canget free licenses,that license is free forever or have deadline time? would U give me the link of altera university program or the flow to apply a free licenses? thank so much..