typedef struct MPISqNodeCmdHeader {
    MPISqNodeChannel    channel;    /* internal node destination */
    MPISqNodeMemory     memory;
    MPISqNodeDataSize   size;
    MPISqNodeCmdType    type;       /* read/write command */
} MPISqNodeCmdHeader;


MPISqNodeCmdHeader specifies the service command communication interface to the device, the memory region on the device to access, the data size, and type.

channel Communication interface to a device. See MPISqNodeChannel.
memory The memory region to access. See MPISqNodeMemory.
size The length of data to send or receive. See MPISqNodeDataSize.
type The service command action (read or write). See MPISqNodeCmdType.

See Also