:orphan:

.. title:: MP_NUM_CPUS

.. option:: CONFIG_MP_NUM_CPUS

*Number of CPUs/cores*

Type: ``int``

Help
====

.. code-block:: none

    Number of multiprocessing-capable cores available to the
    multicpu API and SMP features.

Defaults
========

- 2
- 2
- 2 if \ :option:`BOARD_UP_SQUARED <CONFIG_BOARD_UP_SQUARED>`
- 4
- 2
- 2
- 2
- 2
- 2
- 2
- 2
- 1

Kconfig definitions
===================



At ``<Zephyr Boards>/x86/acrn/Kconfig.defconfig:10``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:18``

Menu path: (Top)

.. code-block:: kconfig

    config MP_NUM_CPUS
    	int
    	default 2
    	depends on BOARD_ACRN

----

At ``<Zephyr Boards>/x86/ehl_crb/Kconfig.defconfig:13``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:18``

Menu path: (Top)

.. code-block:: kconfig

    config MP_NUM_CPUS
    	int
    	default 2
    	depends on BOARD_EHL_CRB || BOARD_EHL_CRB_SBL

----

At ``<Zephyr Boards>/x86/up_squared/Kconfig.defconfig:8``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:18``

Menu path: (Top)

.. code-block:: kconfig

    config MP_NUM_CPUS
    	int
    	default 2 if BOARD_UP_SQUARED
    	depends on BOARD_UP_SQUARED

----

At ``<Zephyr SoC>/arc/snps_arc_hsdk/Kconfig.defconfig:39``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:19`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1``

Menu path: (Top)

.. code-block:: kconfig

    config MP_NUM_CPUS
    	int
    	default 4
    	depends on SOC_ARC_HSDK

----

At ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig.hs_smp:37``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:19`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1`` → ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig:19``

Menu path: (Top)

.. code-block:: kconfig

    config MP_NUM_CPUS
    	int
    	default 2
    	depends on SOC_NSIM_HS_SMP && SOC_NSIM

----

At ``<Zephyr SoC>/xtensa/esp32/Kconfig.defconfig:14``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:19`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1``

Menu path: (Top)

.. code-block:: kconfig

    config MP_NUM_CPUS
    	int
    	default 2
    	depends on SOC_ESP32

----

At ``<Zephyr SoC>/xtensa/intel_adsp/cavs_v15/Kconfig.defconfig.series:68``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:19`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1`` → ``<Zephyr SoC>/xtensa/intel_adsp/Kconfig.defconfig:6``

Menu path: (Top)

.. code-block:: kconfig

    config MP_NUM_CPUS
    	int
    	default 2
    	depends on SMP && SOC_SERIES_INTEL_CAVS_V15

----

At ``<Zephyr SoC>/xtensa/intel_adsp/cavs_v18/Kconfig.defconfig.series:72``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:19`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1`` → ``<Zephyr SoC>/xtensa/intel_adsp/Kconfig.defconfig:6``

Menu path: (Top)

.. code-block:: kconfig

    config MP_NUM_CPUS
    	int
    	default 2
    	depends on SMP && SOC_SERIES_INTEL_CAVS_V18

----

At ``<Zephyr SoC>/xtensa/intel_adsp/cavs_v20/Kconfig.defconfig.series:72``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:19`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1`` → ``<Zephyr SoC>/xtensa/intel_adsp/Kconfig.defconfig:6``

Menu path: (Top)

.. code-block:: kconfig

    config MP_NUM_CPUS
    	int
    	default 2
    	depends on SMP && SOC_SERIES_INTEL_CAVS_V20

----

At ``<Zephyr SoC>/xtensa/intel_adsp/cavs_v25/Kconfig.defconfig.series:72``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:19`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1`` → ``<Zephyr SoC>/xtensa/intel_adsp/Kconfig.defconfig:6``

Menu path: (Top)

.. code-block:: kconfig

    config MP_NUM_CPUS
    	int
    	default 2
    	depends on SMP && SOC_SERIES_INTEL_CAVS_V25

----

At ``<Zephyr SoC>/xtensa/intel_s1000/Kconfig.defconfig:36``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:19`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1``

Menu path: (Top)

.. code-block:: kconfig

    config MP_NUM_CPUS
    	int
    	default 2
    	depends on SMP && SOC_INTEL_S1000

----

At ``<Zephyr Kernel>/Kconfig:801``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:30``

Menu path: (Top) → General Kernel Options → SMP Options

.. code-block:: kconfig

    config MP_NUM_CPUS
    	int "Number of CPUs/cores"
    	range 1 4
    	default 1
    	help
    	  Number of multiprocessing-capable cores available to the
    	  multicpu API and SMP features.

*(The 'depends on' condition includes propagated dependencies from ifs and menus.)*