How to use cuZFP's lossless compression to compress int？

[xusiang]

Hello，
I tried to use cuZFP (https://github.com/mclarsen/cuZFP,which is said that this work has now been added to the official zfp repository) to compress int data in lossless mode.However,I tried to run https://github.com/mclarsen/cuZFP/tree/develop/src/tests/t_encode_decode_1.cpp :
TEST(encode_decode, test_encode_decode_int32) { run_test<int>(512); }
but I found the result lossy:

Decode elapsed time: 0.00001 (s)
Decode rate: 158.95 (MB / sec)
Total absolute error 434.00000000000000000000
Average abosulte error 0.84765625000000000000 with 512 values.
How can I use lossless mode to compress int data?

[lindstro]

Reversible (lossless) mode is not yet supported by the CUDA backend. See https://zfp.readthedocs.io/en/release1.0.1/execution.html#setting-the-execution-policy.