(@-target)=
# @
Manage operations related to the current node.



## <@

Receive current node name.

**Datatype:** `MDI_CHAR`  
**Quantity**: `MDI_NAME_LENGTH`  

 The engine sends the driver a string that corresponds to the name of its current node.

### Examples


::::{tab-set}

:::{tab-item} Python
:sync: python

```python
import mdi

# connect to the engine
mdi_engine = mdi.MDI_Accept_Communicator()

# send the "<@" command to the engine to get the current node
mdi.MDI_Send_Command("<@", mdi_engine) 

# receive the name of the current node
node_name = mdi.MDI_Recv(mdi.MDI_NAME_LENGTH, mdi.MDI_CHAR, mdi_engine)

```
:::

:::{tab-item} C++
:sync: cpp

```cpp
#include "mdi.h"

// connect to the engine
MDI_Comm mdi_engine = MDI_Accept_Communicator();

// create a buffer to hold the name of the current node
char* node_name = new char[MDI_NAME_LENGTH];

// send the "<@" command to the engine to get the current node
MDI_Send_Command("<@", mdi_engine);

// receive the name of the current node
MDI_Recv(node_name, MDI_NAME_LENGTH, MDI_CHAR, mdi_engine);

```
:::

::::

## @

Go to the next node.


 The engine proceeds to the next node. Typically not supported at the `@DEFAULT` node.

### Examples


::::{tab-set}

:::{tab-item} Python
:sync: python

```python
import mdi

# connect to the engine
mdi_engine = mdi.MDI_Accept_Communicator()

# send the "@INIT_MD" command to the engine (so we are not at default node)
mdi.MDI_Send_Command("@INIT_MD", mdi_engine)

# send the engine to the next node.
mdi.MDI_Send_Command("@", mdi_engine)

```
:::

:::{tab-item} C++
:sync: cpp

```cpp
#include "mdi.h"

// connect to the engine
MDI_Comm mdi_engine = MDI_Accept_Communicator();

// send the "@INIT_MD" command to the engine (so we are not at default node)
MDI_Send_Command("@INIT_MD", mdi_engine);

// send the engine to the next node
MDI_Send_Command("@", mdi_engine);  

```
:::

::::