Distributed system and memory management device, method, and storage medium

A distributed system provided with a plurality of modules that manages each of a reference origin object that references an object residing in another module and a reference destination object that is referenced from said reference origin object by means of partial reference weight and total reference weight;

• wherein at least one module of said plurality of modules, comprising:
• first transmitting means for transmitting information relating to an object residing in said module to another module;
• first receiving means for receiving a first additional reference weight for setting partial reference weight and a response to information relating to said object transmitted from another module;
• and
• first relay object creating means for setting said first additional reference weight received by said first receiving means as partial reference weight, and converting said object to a relay object for transferring a reference request from another object to the transmission destination of information relating to said object;
• and wherein at least one other module of said plurality of modules comprises:
• second receiving means for receiving information relating to an object transmitted from a first transmitting means of another module;
• reference destination object creating means for setting a prescribed value as total reference weight and creating a reference destination object based on information relating to said object received by said second receiving means;
• and
• second transmitting means for transmitting to said first receiving means said first additional reference weight having a value corresponding to said total reference weight together with a response to information relating to said object received by said second receiving means.

A distributed system that is made up of a plurality of computers joined by way of a network, that is provided with a plurality of modules, and that manages each of a reference origin object that references an object residing in another module and a reference destination object that is referenced from said reference origin object by means of partial reference weight and total reference weight;

• wherein at least one computer of said plurality of computers, comprising:
• first transmitting means for transmitting, to another computer by way of said network, information relating to that module including information relating to an object residing inside said computer;
• first receiving means for receiving a response to information relating to said module that was transmitted from a module created in another computer, and first additional reference weight for setting partial reference weight;
• and
• first relay module creating means for setting said first additional reference weight received by said first receiving means as partial reference weight, and converting an object within said module to a relay object for transferring a reference request from another object to a transmission destination of information relating to said module;
• and wherein at least one other computer of said plurality of computers, comprising:
• second receiving means for receiving information relating to a module transmitted from said first transmitting means of another computer;
• module creating means for creating a module having a reference destination object in which a prescribed value is set as total reference weight based on information relating to said module received by said second receiving means;
• and
• second transmitting means for transmitting to said first receiving means said first additional reference weight having a value corresponding to said total reference weight together with a response to information relating to said module received by said second receiving means.

A memory management device for managing each of a reference origin object that references an object residing in another module and a reference destination object that is referenced from said reference origin object by means of partial reference weight and total reference weight, comprising:

• partial reference weight discriminating means for discriminating whether or not partial reference weight belonging to said reference origin object is within a prescribed range when said reference origin object references said reference destination object;
• first transmitting means for transmitting to another module in which said reference destination object resides a first additional reference weight having a prescribed value together with a reference request to said reference destination object when said partial reference weight discriminating means determines that said partial reference weight is not within a prescribed range;
• first receiving means for receiving first additional reference weight and a reference request transmitted from a first transmitting means belonging to another module;
• first total reference weight updating means for updating total reference weight belonging to said reference destination object in accordance with said first additional reference weight received by said first receiving means;
• second transmitting means for transmitting, to another module that transmitted said reference request, a second additional reference weight having a value corresponding to said first additional reference weight received by said first receiving means, together with a response to said reference request received by said first receiving means;
• second receiving means for receiving a second additional reference weight and a response transmitted by a second transmitting means of another module;
• and
• partial reference weight updating means for updating partial reference weight belonging to said reference origin object in accordance with said second additional reference weight received by said second receiving means.

A memory management device for managing each of a reference origin object that references an object residing in another module and a reference destination object that is referenced from said reference origin object by means of partial reference weight and total reference weight, comprising:

• first transmitting means for transmitting information relating to an object that resides in the same module to another module;
• first receiving means for receiving information relating to an object that is transmitted from a first transmitting means of another module;
• first reference destination object creating means for setting a prescribed value as total reference weight and creating a reference destination object based on information relating to said object received by said first receiving means;
• second transmitting means for transmitting, to a module that transmitted information relating to said object, a first additional reference weight having a value that corresponds to said total reference weight together with a response to information relating to said object received by said first receiving means;
• second receiving means for receiving a first additional reference weight for setting partial reference weight and a response to information relating to an object transmitted from a second transmitting means of another module;
• and
• first relay object creating means for setting said first additional reference weight received by said second receiving means as a partial reference weight, and converting said object to a relay object for transferring a reference request from another object to a reference destination object created by said first reference destination object creating means.

A memory management device that is joined with other memory management devices by way of a network and that manages each of a reference origin object that references an object residing in another module and a reference destination object that is referenced from said reference origin object by means of partial reference weight and total reference weight, comprising:

• first transmitting means for transmitting to another computer by way of said network information relating to a module containing information relating to an object that resides within said memory management device;
• first receiving means for receiving information relating to a module transmitted from a first transmitting means of another memory management device;
• first module creating means for creating a module having a reference destination object in which a prescribed value is set as total reference weight based on information relating to said module received by said first receiving means;
• second transmitting means for transmitting to a first receiving means said first additional reference weight having a value that corresponds to said total reference weight together with a response to information relating to said module received by said first receiving means;
• second receiving means for receiving a first additional reference weight for setting partial reference weight and a response to information relating to a module transmitted from a second transmitting means of another memory management device;
• and
• first relay module creating means for creating a relay module by setting said first additional reference weight received by said second receiving means as partial reference weight and converting an object within said module to a relay object for transferring a reference request from another object to a transmission destination of information relating to said module.

A memory management method for managing each of a reference origin object that references an object residing in another module and a reference destination object that is referenced from said reference origin object by means of partial reference weight and total reference weight, comprising:

• a partial reference weight discrimination step for discriminating whether or not partial reference weight belonging to said reference origin object is within a prescribed range when said reference origin object references said reference destination object;
• a first transmission step for transmitting, to a module in which said reference destination object resides, a first additional reference weight having a prescribed value together with a reference request to said reference destination object when it is determined in said partial reference weight discrimination step that partial reference weight belonging to said reference origin object is not within a prescribed range;
• a first reception step for receiving said first additional reference weight and said reference request transmitted in said first transmission step;
• a first total reference weight update step for updating total reference weight belonging to said reference destination object in accordance with said first additional reference weight received in said first reception step;
• a second transmission step for transmitting, to a module in which said reference origin object resides, a second additional reference weight having a value that corresponds to said first additional reference weight together with a response to said reference request received in said first reception step;
• a second reception step for receiving said second additional reference weight and said response transmitted in said second transmission step;
• and
• a partial reference weight update step for updating partial reference weight belonging to said reference origin object in accordance with said second additional reference weight received in said second reception step.

A memory management method for managing each of a reference origin object that references an object residing in another module and a reference destination object that is referenced from said reference origin object by means of partial reference weight and total reference weight, comprising:

• a first transmission step for transmitting to another module information relating to an object residing within that same module;
• a first reception step for receiving information relating to an object transmitted in said first transmission step;
• a first reference destination object creation step for setting a prescribed value as total reference weight and creating a reference destination object based on information relating to said object received in said first reception step;
• a second transmission step for transmitting, to a module that transmitted information relating to said object, first additional reference weight having a value that corresponds to said total reference weight together with a response to information relating to said object received in said first reception step;
• a second reception step for receiving said first additional reference weight for setting partial reference weight and a response to information relating to said object transmitted in said second transmission step;
• and
• a first relay object creation step for setting said first additional reference weight received in said second reception step as partial reference weight, and converting said object to a relay object for transferring a reference request from another object to a reference destination object created in said first reference destination object creation step.

A memory management method for managing each of a reference origin object that references an object residing in another module and a reference destination object that is referenced from said reference origin object by means of partial reference weight and total reference weight, comprising:

• a first transmission step for transmitting information relating to a module including information relating to an object to another computer other than the computer in which said module resides;
• a first reception step for receiving information relating to a module transmitted in said first transmission step;
• a first module creation step for creating a module having a reference destination object in which a prescribed value is set as total reference weight based on information relating to said module received in said first reception step;
• a second transmission step for transmitting to a first receiving means said first additional reference weight having a value that corresponds to said total reference weight together with a response to information relating to said module received in said first reception step;
• a second reception step for receiving a first additional reference weight for setting partial reference weight and a response to information relating to a module transmitted in said second transmission step;
• and
• a first relay module creation step for creating a relay module by setting said first additional reference weight received in said second reception step as partial reference weight and converting an object within that module to a relay object for transferring a reference request from another object to a transmission destination of information relating to said module.

A recording medium that can be read by a computer and that stores a program for managing each of a reference origin object that references an object residing in another module and a reference destination object that is referenced from said reference origin object by means of partial reference weight and total reference weight;

• and that stores a program for realizing:
• a partial reference weight discrimination step for discriminating whether or not a partial reference weight belonging to said reference origin object is within a prescribed range when said reference origin object references said reference destination object;
• a first transmission step for transmitting, to a module in which said reference destination object resides, a first additional reference weight having a prescribed value together with a reference request to said reference destination object when it is determined in said partial reference weight discrimination step that said partial reference weight belonging to said reference origin object is not within said prescribed range;
• a first reception step for receiving said first additional reference weight and said reference request transmitted in said first transmission step;
• a first total reference weight update step for updating total reference weight belonging to said reference destination object i n accordance with said first additional reference weight received in said first reception step;
• a second transmission step for transmitting, to a module in which said reference origin object resides, a second additional reference weight having a value that corresponds to said first additional reference weight together with a response to said reference request received in said first reception step;
• a second reception step for receiving said second additional reference weight and said response transmitted in said second transmission step;
• and
• a partial reference weight update step for updating partial reference weight belonging to said reference origin object in accordance with said second additional reference weight received in said second reception step.

A recording medium that can be read by a computer and that stores a program for managing each of a reference origin object that references an object residing in another module and a reference destination object that is referenced from said reference origin object by means of partial reference weight and total reference weight;

• and stores a program for realizing:
• a first transmission step for transmitting to another module information relating to an object residing within that same module;
• a first reception step for receiving information relating to an object transmitted in said first reception step;
• a first reference destination object creation step for setting a prescribed value as total reference weight and creating a reference destination object based on information relating to said object received in said first reception step;
• a second transmission step for transmitting, to a module that transmitted information relating to said object, a first additional reference weight having a value that corresponds to said total reference weight together with a response to information relating to said object received in said first reception step;
• a second reception step for receiving said first additional reference weight for setting partial reference weight and a response to information relating to said object transmitted in said second transmission step;
• and
• a first relay object creation step for setting said first additional reference weight received in said second reception step as partial reference weight and converting said reference destination object to a relay object for transferring a reference request from another object to a reference destination object created in said first reference destination object creation step.

A recording medium that can be read by a computer and that stores a program for managing each of a reference origin object that references an object residing in another module and a reference destination object that is referenced from said reference origin object by means of partial reference weight and total reference weight;

• and stores a program for realizing:
• a first transmission step for transmitting information relating to a module including information relating to an object to another computer other than said computer in which said module resides;
• a first reception step for receiving information relating to a module transmitted in said first transmission step;
• a first module creation step for creating a module having a reference destination object in which a prescribed value is set as total reference weight based on information relating to said module received in said first reception step;
• a second transmission step for transmitting to a first receiving means said first additional reference weight having a value that corresponds to said total reference weight together with a response to information relating to said module received in said first reception step;
• a second reception step for receiving a first additional reference weight for setting partial reference weight and a response to information relating to a module transmitted in said second transmission step;
• and
• a first relay module creation step for creating a relay module by setting said first additional reference weight received in said second reception step as partial reference weight and converting an object within that module to a relay object for transferring a reference request from another object to a transmission destination of information relating to said module.