.. index::
    double: general; options

General runtime options
-----------------------

Nanos++ have several common options which can be specified while running OmpSs's programs.

--smp-cpus=<n>  Set number of requested CPUs.
--smp-workers=<n>  Set number of SMP worker threads.
--cpus-per-socket=<n>  Set number of CPUs per socket.
--num-sockets=<n>  Set number of sockets available.
--hwloc-topology=<xml-file>  Overrides hwloc's topology discovery and uses the one provided by *xml-file*.
--stack-size=<n>  Defines default stack size for all devices.
--binding-start=<cpu-id>  Set initial CPU for binding (binding required).
--binding-stride=<n>  Set binding stride (binding required).
--disable-binding, --no-disable-binding  Disables/enables thread binding (enabled by default).
--verbose, --no-verbose  Activate verbose mode (requires Nanos++ debug version).
--disable-synchronized-start, --no-disable-synchronized-start  Disables synchronized start (enabled by default).
--architecture=<arch>  Defines default architecture. Where *arch* can be one of the following options: ``smp``, ``gpu``, ``opencl`` *or* ``cluster``.
--disable-caches, --no-disable-caches  Disables/enables the use of caches (enabled by default).
--cache-policy=<cache-policy>  Set default cache policy. Where *cache-policy* can be one of the following options: ``wt`` (write through) *or* ``wb`` (write back).
--summary, --no-summary  Enables/disables runtime summary mode, printing statistics at start/end phases (disabled by default)