ZWhimsi comments

Results 7 comments of


                                            ZWhimsi

CNN Synthesis fail : ERROR: [XFORM 203-504] Stop unrolling loop 'Product1' (firmware/nnet_utils/nnet_dense_latency.h:37) in function 'nnet::dense_latency<ap_fixed<2, 1, (ap_q_mode)5, (ap_o_mode)3, 0>, ap_fixed<2, 1, (ap_q_mode)5, (ap_o_mode)3, 0>, config6>' because it may cause large runtime and excessive memory usage due to increase in code size. Please avoid unrolling the loop or form sub-functions for code in the loop body. ERROR: [HLS 200-70] Pre-synthesis failed.

Hi, thank you for your response. However, I encountered is this issue with a reuse factor of 1,000,000, using the strategy "Resources" and an approximately 10,000-parameter CNN. If these settings...

CNN Synthesis fail : ERROR: [XFORM 203-504] Stop unrolling loop 'Product1' (firmware/nnet_utils/nnet_dense_latency.h:37) in function 'nnet::dense_latency<ap_fixed<2, 1, (ap_q_mode)5, (ap_o_mode)3, 0>, ap_fixed<2, 1, (ap_q_mode)5, (ap_o_mode)3, 0>, config6>' because it may cause large runtime and excessive memory usage due to increase in code size. Please avoid unrolling the loop or form sub-functions for code in the loop body. ERROR: [HLS 200-70] Pre-synthesis failed.

Yes, my bad. I corrected it. Is there a way to estimate the complexity of the process for a network to avoid attempting 'Latency' mode when it is clearly infeasible?...

CNN Synthesis fail : ERROR: [XFORM 203-504] Stop unrolling loop 'Product1' (firmware/nnet_utils/nnet_dense_latency.h:37) in function 'nnet::dense_latency<ap_fixed<2, 1, (ap_q_mode)5, (ap_o_mode)3, 0>, ap_fixed<2, 1, (ap_q_mode)5, (ap_o_mode)3, 0>, config6>' because it may cause large runtime and excessive memory usage due to increase in code size. Please avoid unrolling the loop or form sub-functions for code in the loop body. ERROR: [HLS 200-70] Pre-synthesis failed.

Thanks for your help !

CNN Synthesis fail : ERROR: [XFORM 203-504] Stop unrolling loop 'Product1' (firmware/nnet_utils/nnet_dense_latency.h:37) in function 'nnet::dense_latency<ap_fixed<2, 1, (ap_q_mode)5, (ap_o_mode)3, 0>, ap_fixed<2, 1, (ap_q_mode)5, (ap_o_mode)3, 0>, config6>' because it may cause large runtime and excessive memory usage due to increase in code size. Please avoid unrolling the loop or form sub-functions for code in the loop body. ERROR: [HLS 200-70] Pre-synthesis failed.

The reuse factor is capped at the number of parameters for each layer, correct? I have valid reuse factors ranging from 1, 2, ..., to 18432 for a conv2D layer...

CNN Synthesis fail : ERROR: [XFORM 203-504] Stop unrolling loop 'Product1' (firmware/nnet_utils/nnet_dense_latency.h:37) in function 'nnet::dense_latency<ap_fixed<2, 1, (ap_q_mode)5, (ap_o_mode)3, 0>, ap_fixed<2, 1, (ap_q_mode)5, (ap_o_mode)3, 0>, config6>' because it may cause large runtime and excessive memory usage due to increase in code size. Please avoid unrolling the loop or form sub-functions for code in the loop body. ERROR: [HLS 200-70] Pre-synthesis failed.

Additionally, I'm curious why even with a large reuse factor like 1000000, the synthesis fails when in "Latency" mode. Wouldn't it be possible to select the maximum reuse factor for...

CNN Synthesis fail : ERROR: [XFORM 203-504] Stop unrolling loop 'Product1' (firmware/nnet_utils/nnet_dense_latency.h:37) in function 'nnet::dense_latency<ap_fixed<2, 1, (ap_q_mode)5, (ap_o_mode)3, 0>, ap_fixed<2, 1, (ap_q_mode)5, (ap_o_mode)3, 0>, config6>' because it may cause large runtime and excessive memory usage due to increase in code size. Please avoid unrolling the loop or form sub-functions for code in the loop body. ERROR: [HLS 200-70] Pre-synthesis failed.

Thank you! Can you provide more details on how the Latency mode works? I read the paper and the documentation but didn't find the information I was looking for. Is...

CNN Synthesis fail : ERROR: [XFORM 203-504] Stop unrolling loop 'Product1' (firmware/nnet_utils/nnet_dense_latency.h:37) in function 'nnet::dense_latency<ap_fixed<2, 1, (ap_q_mode)5, (ap_o_mode)3, 0>, ap_fixed<2, 1, (ap_q_mode)5, (ap_o_mode)3, 0>, config6>' because it may cause large runtime and excessive memory usage due to increase in code size. Please avoid unrolling the loop or form sub-functions for code in the loop body. ERROR: [HLS 200-70] Pre-synthesis failed.

I am working on a script designed to forecast FPGA resource usage (specifically DSPs and BRAMs) for HLS4ML. The goal is to estimate resource usage and throughput without synthesizing every...