Abstract: A parallel processing apparatus includes: nodes that execute information processing; and a control device, wherein the control device includes processing units provided corresponding to the nodes and configured to process a command received from the corresponding node and a data string, each of the processing units includes a reception data register in which data pieces in a reception data string are stored, a reception data buffer to which the data piece is transferred from the reception data register, a reception completion detector that detects completion of transfer of the reception data string, a fault detector that detects whether the received command is a fault command, and an interrupt issuer that issues an interrupt based on detection of the fault command, and issues an interrupt based on detection of the completion of the transfer of the reception data string when the fault detector does not detect the fault command.

Abstract: A parallel processing apparatus includes: nodes that execute information processing; and a control device, wherein the control device includes processing units provided corresponding to the nodes and configured to process a command received from the corresponding node and a data string, each of the processing units includes a reception data register in which data pieces in a reception data string are stored, a reception data buffer to which the data piece is transferred from the reception data register, a reception completion detector that detects completion of transfer of the reception data string, a fault detector that detects whether the received command is a fault command, and an interrupt issuer that issues an interrupt based on detection of the fault command, and issues an interrupt based on detection of the completion of the transfer of the reception data string when the fault detector does not detect the fault command.