c++

I was using tiny-dnn recently, however when I try to use AVX/AVX2 instructions to train example_minist_train, eg set(USE_AVX ON) , I got Illegal instruction (core dumped) error. I try to debug in Clion-IDE, I got the error in gdb : Program received signal SIGILL, Illegal instruction. 0x0000000000448b66 in tiny_dnn::weight_init::xavier::fill(std::vector >*, unsigned long, unsigned long) ()

I use Ubuntu 14.04 STL 64bit system, and the information of my cpu like this :

processor : 31

vendor_id : GenuineIntel

cpu family : 6

model : 62

model name : Intel(R) Xeon(R) CPU E5-2650 v2 @ 2.60GHz

stepping : 4

microcode : 0x428

cpu MHz : 2600.101

cache size : 20480 KB

physical id : 1

siblings : 16

core id : 7

cpu cores : 8

apicid : 47

initial apicid : 47

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 acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat epb pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms xsaveopt

bugs :

bogomips : 5201.86

clflush size : 64

cache_alignment : 64

address sizes : 46 bits physical, 48 bits virtual

power management:

when I use SSE, eg set(USE_SSE ON) and set(USE_AVX OFF), set(USE_AVX2 OFF), the program will run normly, how can I fix this problem? thanks!

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