What are these different arch types in FPGA binaries release folder in OpenVino

[Altera_Forum]

i understand 0.8.1 is the DLA version, 16x32 is k vectorization and channel depth and fp16 is the floating point precision. but what does arch13/09/06 mean ? 

0-8-1_a10dk_fp11_16x32_arch16.aocx 0-8-1_a10dk_fp16_8x24_arch13.aocx 0-8-1_a10dk_fp16_8x48_arch06.aocx 0-8-1_a10dk_fp11_16x32_arch19.aocx 0-8-1_a10dk_fp16_8x32_arch09.aocx 0-8-1_a10dk_fp16_8x48_arch08.aocx

[Altera_Forum]

I think they are different CNN architectures or variants in the same architecture. Eg: arch 17 is SqueezNet according to https://software.intel.com/en-us/articles/openvino-install-linux-fpga

[Altera_Forum]

Since there is no description on these binaries, only way is to try out all of them and see which one performs better.