large thread error

[jianshu93]

Dear Team,

I have the following when using threads 24 (default 16), the most recent commit:

(pangenome) bash-4.2$ ggcat build --gfa --kmer-length 61 -m 200 --output-file ../ggcat_out -t ./tmp -j 24 ./*.fna.gz
Allocator initialized: mem: 200 GiB chunks: 819200 log2: 18
Using m: 14 with k: 61
Started phase: reads bucketing
Temp buckets files size: 3.16 MiB
Finished phase: reads bucketing. phase duration: 7.22s gtime: 7.22s
Started phase: kmers merge
Finished phase: kmers merge. phase duration: 18.94s gtime: 26.15s
Started phase: hashes sorting
Panic: panicked at /home/jiz322/.cargo/registry/src/index.crates.io-6f17d22bba15001f/parallel-processor-0.1.18/src/memory_fs/file/internal.rs:265:26:
called Result::unwrap() on an Err value: "Error while opening file ./tmp/build_graph_57ad3849-d1a0-4ba7-b92d-b1439cfde206/unitigs_map.1019: Too many open files (os error 24)"
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Thanks

Jianshu