Information processing device, information processing system, and communication device

An information processing system comprising:

• a plurality of information processing devices which are connected with each other through a plurality of first lanes and a plurality of second lanes,
• wherein at least one of the plurality of information processing devices including:
• an arithmetic processing device,
• a storage device configured to store data processed by the arithmetic processing device, and the storage device being coupled to the arithmetic processing device,
• a communication device coupled to the arithmetic processing device, and the communication device configured to:
• output transmission information including transmission data which is output from the arithmetic processing device, and output reception data included in reception information to the arithmetic processing device,
• distribute the transmission information into a plurality of pieces of distribution transmission data, transmit the plurality of pieces of distribution transmission data to a plurality of first lanes, respectively, the reception information being generated from a plurality of pieces of distribution reception data that are respectively received through a plurality of second lanes,
• extract the reception data included in the reception information, and first error information indicating an error in any of the plurality of first lanes included in the reception information;
• generate first degeneration information indicating a use stop lane for which use is stopped, among the plurality of first lanes, based on the first error information,
• generate second degeneration information indicating a use stop lane for which use is stopped, among the plurality of second lanes, based on second error information, and generate transmission information including the second degeneration information,
• transmit distribution transmission data of the transmission information that correspond to lanes excluding the use stop lane indicated by the first degeneration information, among the plurality of first lanes;
• generate the reception information in correspondence with distribution reception data that is received through lanes excluding the use stop lane indicated by the second degeneration information, among the plurality of second lanes;
• and
• detect an error in any of the plurality of pieces of distribution reception data, wherein the second error information is generated to indicate a second lane through which error-detected distribution reception data is transmitted.

A communication device which is mounted in an information processing device including an arithmetic processing device and a storage device configured to store data processed by the arithmetic processing device, the communication device comprising:

• one or more processor to:
• output transmission information including transmission data which is output from the arithmetic processing device, and output reception data included in reception information to the arithmetic processing device,
• distribute the transmission information into a plurality of pieces of distribution transmission data, transmit the plurality of distribution transmission data to a plurality of first lanes, respectively, the reception information being generated from a plurality of pieces of distribution reception data that are respectively received through a plurality of second lanes,
• extract the reception data included in the reception information, and first error information indicating an error in any of the plurality of first lanes included in the reception information;
• generate first degeneration information indicating a use stop lane for which use is stopped, among the plurality of first lanes, based on the first error information,
• generate second degeneration information indicating a use stop lane for which use is stopped, among the plurality of second lanes, based on second error information, and generate transmission information including the second degeneration information,
• transmit distribution transmission data of the transmission information that correspond to lanes excluding the use stop lane indicated by the first degeneration information, among the plurality of first lanes,
• generate the reception information in correspondence with distribution reception data that is received through lanes excluding the use stop lane indicated by the second degeneration information, among the plurality of second lanes, and
• detect an error in any of the plurality of pieces of distribution reception data, wherein the second error information is generated to indicate a second lane through which error-detected distribution reception data is transmitted.