OpenCL on FPGA Not able to generate hardware for matrix_mult.cl

You are getting another random crash:

--- Quote Start ---

Internal Error: Sub-system: VPR20KMAIN, File: /quartus/fitter/vpr20k/dap/dap_congestion.cpp, Line: 1525

Internal Error

Stack Trace:

0xbb0d4: vpr_qi_jump_to_exit + 0x6f (fitter_vpr20kmain)

0x1b6288: vpr_exit_at_line + 0x83 (fitter_vpr20kmain)

0x562d37: dap_evaluate_move + 0x77 (fitter_vpr20kmain)

0x416556: l_mpp_perform_moves_worker(void*) [clone .isra.671] + 0x30f (fitter_vpr20kmain)

0x416682: l_mpp_worker_thread(void*) + 0x4a (fitter_vpr20kmain)

0xd09d2: l_thread_start_wrapper(void*) + 0x29 (fitter_vpr20kmain)

0x5b4c: thr_final_wrapper + 0xc (ccl_thr)

0x3f21f: msg_thread_wrapper(void* (*)(void*), void*) + 0x62 (ccl_msg)

0xac5c: mem_thread_wrapper(void* (*)(void*), void*) + 0x5c (ccl_mem)

0x8b49: err_thread_wrapper(void* (*)(void*), void*) + 0x27 (ccl_err)

0x5b8f: thr_thread_wrapper + 0x15 (ccl_thr)

0x5e72: thr_thread_begin + 0x46 (ccl_thr)

0x7e25: start_thread + 0xc5 (pthread)

0xf834d: clone + 0x6d (c)

End-trace

--- Quote End ---

Since the crashing point seems to be changing, my guess is that some component in your system must be unstable. This could be the CPU, the memory, the disk, or even the network if you are using a network storage system. Do you have any other machines to use for a compilation test?