cpuaff

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C++ interface to CPU affinity management

// repository documentation

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## cpuaff - [website](http://dcdillon.github.io/cpuaff)

### IMPORTANT

The PPA for Ubuntu packages has been moved to [ppa:dcdillon/cpuaff](https://launchpad.net/~dcdillon/+archive/ubuntu/cpuaff).

### Short Description

cpuaff is a C++ library that abstracts CPU affinity settings for multiple platforms.  It is a header-only library on some platforms.  Other platforms are supported using [hwloc](http://www.open-mpi.org/projects/hwloc/).  The project aims to fully support all platforms as header-only eventually.

For a more detailed description of cpuaff, click [here](http://dcdillon.github.io/cpuaff/details.html)

To see a list of supported platforms click [here](http://dcdillon.github.io/cpuaff/supported_platforms.html).

### Releases

The latest source release is [cpuaff-1.0.6](http://dcdillon.github.io/cpuaff/releases/cpuaff-1.0.6.tar.gz).

The latest Ubuntu packages are available from [ppa:dcdillon/cpuaff](https://launchpad.net/~dcdillon/+archive/ubuntu/cpuaff).

To get other releases, go to the [downloads](http://dcdillon.github.io/cpuaff/downloads.html) page.

For installation instructions, click [here](http://dcdillon.github.io/cpuaff/installation.html)

### Simple Example

``` cpp
#include <cpuaff/cpuaff.hpp>
#include <iostream>

int main(int argc, char *argv[])
{
    cpuaff::affinity_manager manager;

if (manager.has_cpus())
    {
        cpuaff::cpu_set cpus;
        manager.get_affinity(cpus);

std::cout << "Initial Affinity:" << std::endl;

cpuaff::cpu_set::iterator i = cpus.begin();
        cpuaff::cpu_set::iterator iend = cpus.end();

for (; i != iend; ++i)
        {
            std::cout << "  " << (*i) << std::endl;
        }

std::cout << std::endl;

// set the affinity to all the processing units on
        // the first core
        cpuaff::cpu_set core_0;
        manager.get_cpus_by_core(core_0, 0);

manager.set_affinity(core_0);
        manager.get_affinity(cpus);

std::cout << "Affinity After Calling set_affinity():"
                  << std::endl;
        i = cpus.begin();
        iend = cpus.end();

for (; i != iend; ++i)
        {
            std::cout << "  " << (*i) << std::endl;
        }

return 0;
    }

std::cerr << "cpuaff: unable to load cpus." << std::endl;
    return -1;
}
```

### Pronunciation

Due to popular demand, we now have a guide on pronunciation.  cpuaff is pronounced "spoof" because all other pronunciations I have come up with sound like garbled French.

### Licensing

cpuaff is distributed under the [New BSD](http://opensource.org/licenses/BSD-3-Clause) (or BSD 3-Clause) license.

cpuaff

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