Shared Arrays¶

Located in file: MEL.hpp

template <typename T>

Shared<T> MEL::SharedCreate(const int len, const int rank, const int size, const int root, const Comm &comm)¶

Create a MEL::Shared array across a comm world.

Parameters

• len -

  The number of elements to allocate

• rank -

  The rank of the calling process

• size -

  The size of the comm world

• root -

  The rank of the process who will own the shared array

• comm -

  The comm world to share the array across

template <typename T>

Shared<T> MEL::SharedCreate(const int len, const int root, const Comm &comm)¶

Create a MEL::Shared array across a comm world.

Parameters

• len -

  The number of elements to allocate

• root -

  The rank of the process who will own the shared array

• comm -

  The comm world to share the array across

template <typename T>

void MEL::SharedFree(Shared<T> &shared)¶

Free a MEL::Shared array.

Parameters

• shared -

  The shared array to free

template <typename T>

bool MEL::SharedTest(const Shared<T> &shared)¶

Test if the shared array is currently locked.

Parameters

• shared -

  The shared array to test

template <typename T>

void MEL::SharedLock_noget(Shared<T> &shared)¶

Get the lock on the shared array without synchronizing the data.

Useful for if you only intend to write to the array

Parameters

• shared -

  The shared array to lock

template <typename T>

void MEL::SharedLock_noget(Shared<T> &shared, const int start, const int end)¶

Get the lock on the shared array without synchronizing the data.

Useful for if you only intend to write to the array

Parameters

• shared -

  The shared array to lock

• start -

  The start index to lock

• end -

  The end index to lock

template <typename T>

void MEL::SharedLock(Shared<T> &shared)¶

Get the lock on the shared array and synchronize the data.

Parameters

• shared -

  The shared array to lock

template <typename T>

void MEL::SharedLock(Shared<T> &shared, const int start, const int end)¶

Get the lock on the shared array and synchronize the data.

Parameters

• shared -

  The shared array to lock

• start -

  The start index to lock

• end -

  The end index to lock

template <typename T>

void MEL::SharedUnlock_noput(Shared<T> &shared)¶

Release the lock on the shared array without synchronizing the data.

Useful for if you only read from the array

Parameters

• shared -

  The shared array to unlock

template <typename T>

void MEL::SharedUnlock_noput(Shared<T> &shared, const int start, const int end)¶

Release the lock on the shared array without synchronizing the data.

Useful for if you only read from the array

Parameters

• shared -

  The shared array to unlock

• start -

  The start index to unlock

• end -

  The end index to unlock

template <typename T>

void MEL::SharedUnlock(Shared<T> &shared)¶

Release the lock on the shared array and synchronize the data.

Parameters

• shared -

  The shared array to unlock

template <typename T>

void MEL::SharedUnlock(Shared<T> &shared, const int start, const int end)¶

Release the lock on the shared array and synchronize the data.

Parameters

• shared -

  The shared array to unlock

• start -

  The start index to unlock

• end -

  The end index to unlock