thorium: use a tickless core

Link: https://github.com/GeneAssembly/biosal/issues/720
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
genomics: make sure the vertex is not NULL

Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
performance: add perf script for spate

Link: https://github.com/GeneAssembly/biosal/issues/720
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>