Intel OpenCL compiler (aoc) does not coalesce global memory reads anymore

The OpenCL SDK for Intel FPGAs is no longer distributed since 22.4.

Therefore, 22.4 is the last version of the compiler to officially support OpenCL as an input language.

How did you get a 2024.2.1 version of aoc? I'm guessing that you got that binary from a oneAPI SYCL compiler for FPGA install.

The SYCL compiler uses aoc internally, but is not expected to work as a standalone.

Hi @Björne2,

Good day, just following up on the previous clarification.

By any chances did you managed to look into it?

Hope to hear from you soon.

Best Wishes

BB

Hi @Björne2,

Greetings, just checking in to see if there is any further doubts in regards to this matter.

Hope your doubts have been clarified.

Best Wishes

BB

Hi @Björne2,

Greetings, as we do not receive any further clarification/updates on the matter, hence would assume challenge are overcome. Please login to ‘https://supporttickets.intel.com’, view details of the desire request, and post a feed/response within the next 15 days to allow me to continue to support you. After 15 days, this thread will be transitioned to community support. For new queries, please feel free to open a new thread and we will be right with you. Pleasure having you here.

Best Wishes

BB

Hi BoonBengT and yuguen. I know that OneAPI only support SYCL. But SYCL is horrible for FPGA work so I'm sticking with OpenCL. Besides, SYCL is just a thin layer on top of OpenCL anyway. I solved my issue by removing the "volatile" keyword. Apparently, in recent versions volatile prevents memory coalescing.