Openvino on Xeon(R)E5-2643 illegal instruction

[llumo]

Hello, my os is centos7 with intel Xeon E5-2643.

After build openvino, I run the test demo by "./demo_squeezenet_download_convert_run.sh", but got "illegal instruction" error.

###################################################

Build Inference Engine samples

-- Looking for C++ include unistd.h
-- Looking for C++ include unistd.h - found
-- Looking for C++ include stdint.h
-- Looking for C++ include stdint.h - found
-- Looking for C++ include sys/types.h
-- Looking for C++ include sys/types.h - found
-- Looking for C++ include fnmatch.h
-- Looking for C++ include fnmatch.h - found
-- Looking for strtoll
-- Looking for strtoll - found
-- Found InferenceEngine: /home/workspace/OpenVINO_libs/openvino_2020.4.287/deployment_tools/inference_engine/lib/intel64/libinference_engine.so (Required is at least version "2.1")
-- Configuring done
-- Generating done
-- Build files have been written to: /root/inference_engine_samples_build
[ 37%] Built target gflags_nothreads_static
[ 87%] Built target format_reader
[100%] Built target classification_sample_async

###################################################

Run Inference Engine classification sample

[ INFO ] InferenceEngine:
API version ............ 2.1
Build .................. 2020.4.0-359-21e092122f4-releases/2020/4
Description ....... API
[ INFO ] Parsing input parameters
[ INFO ] Parsing input parameters
[ INFO ] Files were added: 1
[ INFO ] /home/workspace/OpenVINO_libs/openvino/deployment_tools/demo/car.png
[ INFO ] Creating Inference Engine
CPU
MKLDNNPlugin version ......... 2.1
Build ........... 2020.4.0-359-21e092122f4-releases/2020/4

[ INFO ] Loading network files
[ INFO ] Preparing input blobs
[ WARNING ] Image is resized from (787, 259) to (227, 227)
[ INFO ] Batch size is 1
[ INFO ] Loading model to the device
./demo_squeezenet_download_convert_run.sh: 行 220: 27329 非法指令 ./classification_sample_async -d "$target" -i "$target_image_path" -m "${ir_dir}/${model_name}.xml" ${sampleoptions}
Error on or near line 220; exiting with status 1

Below is my processor info:processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 62
model name : Intel(R) Xeon(R) CPU E5-2643 v2 @ 3.50GHz
stepping : 4
microcode : 0x427
cpu MHz : 3500.000
cache size : 25600 KB
physical id : 0
siblings : 8
core id : 0
cpu cores : 8
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts mmx fxsr sse sse2 ss ht syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts nopl xtopology tsc_reliable nonstop_tsc aperfmperf eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm fsgsbase tsc_adjust smep dtherm ida arat pln pts
bogomips : 7000.00
clflush size : 64
cache_alignment : 64
address sizes : 42 bits physical, 48 bits virtual
power management:

[llumo · Accepted solution]

Solved. The reason may be the version of cpu is not supportted by Openvino. I turned to another cpu server,  Intel(R) Xeon(R) Gold 6278C, and everything worked fine.

[IntelSupport]

Hi Lumo Wang,

Thanks for reaching out.

Yes, Intel® Xeon® Gold 6278C is not supported by OpenVINO. You can find the information on hardware supported by OpenVINO on this page.

Regards,

Aznie