filtertaxseqdb command isn't using all CPUs by default.

[fbalo-medium]

Expected Behavior

4800% CPU usage checked via top command

Current Behavior

below 100% CPU usage checked via top command.

Steps to Reproduce (for bugs)

Please make sure to execute the reproduction steps with newly recreated and empty tmp folders.

MMseqs Output (for bugs)

Please make sure to also post the complete output of MMseqs. You can use gist.github.com for large output.

Context

Providing context helps us come up with a solution and improve our documentation for the future.

Your Environment

Include as many relevant details about the environment you experienced the bug in.

• Git commit used (The string after "MMseqs Version:" when you execute MMseqs without any parameters):
• Which MMseqs version was used (Statically-compiled, self-compiled, Homebrew, etc.): 14-7e284 (Homebrew)
• For self-compiled and Homebrew: Compiler and Cmake versions used and their invocation: 14-7e284
• Server specifications (especially CPU support for AVX2/SSE and amount of system memory): 48 threads, 384 GB
• Operating system and version: Ubuntu Linux

[milot-mirdita]

Are you writing to a fast storage system? I assume it is IO limited and not compute-limited.