cnv_end2end_example notebook: "IPGen failed: .../impl/ip not found"

[nhma20]

Hi all,

I have been trying to get the example notebooks to run, and the 3 step cybersecurity example as well as the fpga_flow example (https://github.com/jterry-x/finn-examples/tree/main/build/fpga_flow) work for me. However, while trying to step through the cnv_end2end_example I ran into the following error during hardware generation:

"AssertionError: IPGen failed: /tmp/finn_dev_nm/code_gen_ipgen_StreamingDataflowPartition_1_StreamingFCLayer_Batch_7__48d6qfk2/project_StreamingDataflowPartition_1_StreamingFCLayer_Batch_7/sol1/impl/ip not found. Check log under /tmp/finn_dev_nm/code_gen_ipgen_StreamingDataflowPartition_1_StreamingFCLayer_Batch_7__48d6qfk2"

I am using the "feature/vitis_hls" branch of the finn repository alongside Vitis tools 2020.2 in Ubuntu 20.04.3.

Below is the full error:

(the date is off since I had to circumvent the Y2K22 bug (#483)).

Below is the final section with error in the vitis_hls.log file:
"ERROR: [RTGEN 206-103] gen_rtl when opening file /tmp/finn_dev_nm/code_gen_ipgen_StreamingDataflowPartition_1_StreamingFCLayer_Batch_7_48d6qfk2/project_StreamingDataflowPartition_1_StreamingFCLayer_Batch_7/sol1/syn/vhdl/StreamingDataflowPartition_1_StreamingFCLayer_Batch_7_Matrix_Vector_Activate_Stream_Batch_512u_512u_8u_1u_Recast_XnorMul_Slice_ap_uint_1_1u_Identity_ap_uint_1_ap_uint_8_ap_uint_1_ThresholdsActivation_512u_1u_1u_ap_uint_10_ap_uint_1_0_less_equal_ap_uint_10_ap_resource_lut_s.vhd.
INFO: [HLS 200-111] Finished Command csynth_design CPU user time: 9.97 seconds. CPU system time: 0.62 seconds. Elapsed time: 9.66 seconds; current allocated memory: 145.512 MB.
Synthesis failed.
while executing
"source /tmp/finn_dev_nm/code_gen_ipgen_StreamingDataflowPartition_1_StreamingFCLayer_Batch_7_48d6qfk2/hls_syn_StreamingDataflowPartition_1_StreamingFC..."
invoked from within
"hls::main /tmp/finn_dev_nm/code_gen_ipgen_StreamingDataflowPartition_1_StreamingFCLayer_Batch_7_48d6qfk2/hls_syn_StreamingDataflowPartition_1_Streamin..."
("uplevel" body line 1)
invoked from within
"uplevel 1 hls::main {*}$newargs"
(procedure "hls_proc" line 16)
invoked from within
"hls_proc [info nameofexecutable] $argv"
INFO: [HLS 200-112] Total CPU user time: 10.78 seconds. Total CPU system time: 0.86 seconds. Total elapsed time: 10.39 seconds; peak allocated memory: 145.505 MB.
INFO: [Common 17-206] Exiting vitis_hls at Fri Sep 6 14:40:13 2013..."

The directory "/tmp/finn_dev_nm/code_gen_ipgen_StreamingDataflowPartition_1_StreamingFCLayer_Batch_7_48d6qfk2/project_StreamingDataflowPartition_1_StreamingFCLayer_Batch_7/sol1/syn/vhdl/" seems to be empty, but I am not sure how to resolve this. I hope you can help me. Thanks

Best regards,
Nicolaj

[caoimhelynch]

Hi Nicolaj,

I am running into the same issue did you ever find a solution for this?

[nhma20]

I never found the reason for the error, but sometimes copying the specific project into a new folder and compiling again from there seemed to fix it. Hope this can help you as well.