Let us know how it goes!

We developed OpenZL initially for our own consumption at Meta. More recently we've been putting a lot of effort into making this a usable tool for people who, you know, didn't develop OpenZL. Your feedback is welcome!

I must be doing something wrong but I couldn't manage to compressed a file using a custom trained profile since I was getting this error:

``` src/openzl/codecs/dispatch_string/encode_dispatch_string_binding.c:74: EI_dispatch_string: splitting 48000001 strings into 14 outputs OpenZL Library Exception: OpenZL error code: 55 OpenZL error string: Input does not respect conditions for this node OpenZL error context: Code: Input does not respect conditions for this node Message: Check `eltWidth != 2' failed where: lhs = (unsigned long) 4 rhs = (unsigned long) 2

Graph ID: 5 Stack Trace: #0 doEntropyConversion (src/openzl/codecs/entropy/encode_entropy_binding.c:788): Check `eltWidth != 2' failed where: lhs = (unsigned long) 4 rhs = (unsigned long) 2

#1 EI_entropyDynamicGraph (src/openzl/codecs/entropy/encode_entropy_binding.c:860): Forwarding error: #2 CCTX_runGraph_internal (src/openzl/compress/cctx.c:770): Forwarding error: #3 CCTX_runSuccessor_internal (src/openzl/compress/cctx.c:1149): Forwarding error: #4 CCTX_runSuccessors (src/openzl/compress/cctx.c:707): Forwarding error: #5 CCTX_runSuccessor_internal (src/openzl/compress/cctx.c:1149): Forwarding error: #6 CCTX_runSuccessors (src/openzl/compress/cctx.c:707): Forwarding error: #7 CCTX_runSuccessor_internal (src/openzl/compress/cctx.c:1149): Forwarding error: #8 CCTX_runSuccessors (src/openzl/compress/cctx.c:707): Forwarding error: #9 CCTX_runSuccessor_internal (src/openzl/compress/cctx.c:1149): Forwarding error: #10 CCTX_runSuccessors (src/openzl/compress/cctx.c:707): Forwarding error: #11 CCTX_runSuccessor_internal (src/openzl/compress/cctx.c:1149): Forwarding error: #12 CCTX_runSuccessors (src/openzl/compress/cctx.c:707): Forwarding error: #13 CCTX_runSuccessor_internal (src/openzl/compress/cctx.c:1149): Forwarding error: #14 CCTX_startCompression (src/openzl/compress/cctx.c:1276): Forwarding error: #15 CCTX_compressInputs_withGraphSet_stage2 (src/openzl/compress/compress2.c:116): Forwarding error: ```

On the other hand the default CSV profile didn't seem that great either, the CSV file was 349 MB and it compressed it down to 119MB while a ZIP file of the CSV is 105MB.

This is unexpected... I'm interested in seeing what's happening here. Do you mind creating a Github issue with as much info as you're comfortable sharing? https://github.com/facebook/openzl/issues