If you run the OpenCL™ example design "compure_score" on the Intel® Programmable Acceleration Card D5005, you may find the example design hangs and does not produce results. You may see something similar to the following:
[root@localhost bin]# ./host
RAND_MAX: 2147483647
Allocating and setting up data
Creating Documents total_terms=108157184 (no_pad=91552735)
Creating Profile
...
Setting up OpenCL
Platform: Intel(R) FPGA SDK for OpenCL(TM)
Using 1 device(s)
pac_s10_dc : Intel PAC Platform (pac_ee00000)
Using AOCX: compute_score.aocx
Kernel Compilation Time: 0.016351 ms
..........................................hang in here and cannot get result..................................
This is because partial reconfiguration (PR) compile using OpenCL™ may produce hold time violations in the static regions. You can find the “afu_default.failing_clocks.rpt/afu_default.failing_paths.rpt” files on the output folder.
To work around this problem, you should recompile it using a different seed with the command: aoc <kernal_name.cl> -seed=<integer>. For example: aoc hello_world.cl -seed=5.
This problem is scheduled to be fixed in a future release of the Intel® Acceleration Stack for Intel Xeon® CPU with FPGAs.
