cannot run on fpga hardware

[scali]

Hello,

I've recently noticed that programs previously running on the fpga hardware are no longer working. I've also tried to recompile but I get the same problem.

Here's the message I receive for arria 10 oneAPI.

Error enumerating AFCs: not found
Error enumerating AFCs: not found
Error enumerating AFCs: not found
Error enumerating AFCs: not found
Segmentation fault

Do you have any suggestions?
Thank you for your help.

[BoonBengT_Intel]

Hi @scali.,

Thank you for posting in Intel community forum and hope this message find you well.
Can you share what command are being executed to compile the design?

If you are trying to run simulation, please do refer to the related troubleshooting here.
Please do let us know if that helps.

Best Wishes
BB

[scali]

Hello and thank you for your reply.

Below you can find the Makefile that I am using to compile and execute.

Makefile

--------------------------------------------------------

TARGET_EMU = fpga_emu
TARGET_HW = fpga_hardware
TARGET_REPORT = fpga_report.a

SRCS = src/template.cpp
OBJS = $(SRCS:.cpp=.o)
ETS = $(SRCS:.cpp=.d)

CXX = dpcpp
CXXFLAGS = -std=c++17

.PHONY: build build_emu build_hw report run_emu run_hw clean run
.DEFAULT_GOAL := build_emu

# Intel-supported FPGA cards
FPGA_DEVICE_A10 = intel_a10gx_pac:pac_a10
FPGA_DEVICE_S10 = intel_s10sx_pac:pac_s10
FPGA_DEVICE = $(FPGA_DEVICE_A10)

# Compile flags
EMULATOR_FLAGS = -fintelfpga -DFPGA_EMULATOR
HARDWARE_FLAGS = -fintelfpga -Xshardware -Xsboard=$(FPGA_DEVICE)
#HARDWARE_FLAGS = -fintelfpga -Xshardware
REPORT_FLAGS = $(HARDWARE_FLAGS) -fsycl-link

# Build for FPGA emulator
build: build_emu
build_emu: $(TARGET_EMU)

$(TARGET_EMU): $(SRCS)
$(CXX) $(CXXFLAGS) $(EMULATOR_FLAGS) -o $@ $^

# Generate FPGA optimization report (without compiling all the way to hardware)
report: $(TARGET_REPORT)

$(TARGET_REPORT): $(SRCS)
$(CXX) $(CXXFLAGS) $(REPORT_FLAGS) -o $@ $^

# Build for FPGA hardware
build_hw: $(TARGET_HW)

$(TARGET_HW): $(SRCS)
$(CXX) $(CXXFLAGS) $(HARDWARE_FLAGS) -fintelfpga -o $@ $^

# Run on the FPGA emulator
run: run_emu
run_emu: $(TARGET_EMU)
./$(TARGET_EMU)

# Run on the FPGA card
run_hw: $(TARGET_HW)
./$(TARGET_HW)

# Clean all
clean:
-$(RM) $(OBJS) $(TARGET_EMU) $(TARGET_HW) $(TARGET_REPORT) *.d
-$(RM) -R *.prj

--------------------------------------------------------------------

Then I use the following commands to compile and execute

1)make build_emu

2)make report

3)make build_hw

4)make run_emu

5)make run_hw

The executables are compiled, but:

if I try to run on the device through 5) I get the following

Makefile:45: recipe for target 'fpga_hardware' failed

if I login to a node with Arria 10 OneAPI and then run the executable through ./fpga_hardware I obtain:

Error enumerating AFCs: not found
Error enumerating AFCs: not found
Error enumerating AFCs: not found
Error enumerating AFCs: not found
Segmentation fault

Do you think I am doing some mistakes?

I do not understand why, but everything was working until about a week ago.

Thanks for you help.

Best regards.

PS: the commands 1), 2) ... 5) are executed through

qsub -l nodes=1:fpga_compile:ppn=2 -d . job1.sh

or

qsub -l nodes=1:fpga_runtime:ppn=2 -d . job2.sh

and the file job.sh look like

#!/bin/bash

cd /home/my_directory
source /opt/intel/inteloneapi/setvars.sh

make run_hw

[Mickleman]

I've had exactly the same problem and symptoms for the last few weeks.  Programs compiled for FPGA hardware no longer run on fpga nodes.  Have you found a solution?

Thanks

Marcus

[adarsh_m]

are you people still facing the issue ,i am getting segmentation fault 139 error always

[scali]

Hi,

no, I still have the same problem unfortunately.

[scali · Accepted solution]

Hi.

Now it seems to work. I didn't make any change.

[Mickleman]

Thanks

You are right. It now works for me again.  I think the problem was that the qsub was not choosing nodes correctly.  The nodes it chooses now are different and have the FPGA hardware installed.

Regards

Marcus

[adarsh_m]

hello Is it working fine , I am still getting errors while using Opencl kernel on FPGA it mostly gives segmentation error 139

[adarsh_m]

is it working now i am still facing such issues