Limitations on maximum number of cores

Most modern CPUs implement hyper threading or a similar technology that makes each physical CPU core appear as two logical cores on a system. In this manual the term "core" always refers to a logical core unless otherwise stated.

Licensing: Static licenses can be used on systems with 64 or fewer logical cores. On systems with more than 64 logical cores a network license is needed. See

Performance: Tools that take advantage of multiple cores do not scale linearly with high numbers of cores. If you plan to use a large system (>64 cores), a CLC Genomics Server with job nodes running on virtual machines provides potential to use more of the compute capacity in a controlled manner than a CLC Genomics Workbench. Jobs submitted to a CLC Genomics Server job node setup can be run in parallel, with appropriate CPU limits configurable for each node. For further details, see