Bracken (Bayesian Reestimation of Abundance with KrakEN) is a highly accurate statistical method that computes the abundance of species in DNA sequences from a metagenomics sample.
Although, after re-compiling with the threads function, it still complains with anything >1, and I have OMP_NUM_THREADS set correctly for building with kraken2, and it works there.
https://github.com/jenniferlu717/Bracken/blob/699e89169b72c5330c64259dcbafa1a40133f3f2/src/kmer2read_distr.cpp#L170