Abstract: In a system according to any one of embodiments, program structure information may include interval information. Each interval information may include source code position information indicating a successive region on a source code of a target program and parent-child information for specifying a parent-child relationship with respect to the interval information. The program structure information may include a reference interval without a parent. A processing unit may specify the number of parents existing between each interval information and the reference interval as a depth of each interval information from the reference interval, and create display information by arranging the interval information on a coordinate system defined by a first axis representing depth from the reference interval and a second axis representing the parent-child relationship based on the depth from the reference and the parent-child information.

Abstract: A system according to an embodiment is configured to display program execution results with respect to a common axis. The system includes a first unit that acquires event information about two or more events, acquires reference-event identification information to be used in identifying reference events, and generates event objects which represent the events, and a second unit that acquires axis information which represents information about the common axis. The event information contains timing information indicating positions of the events. The first unit sets the reference events as references for the program execution results based on the acquired reference-event identification information, determines display positions of the reference events with respect to the common axis to be same position based on timing information in event information about the reference events, and generates event objects representing the reference events based on the determined display positions with respect to the common axis.

Abstract: A graph display device includes a condition receiver, a time information display circuitry, an instruction receiver and a graph display circuitry. The condition receiver receives a condition for specifying at least one data item from graph data including a plurality of data items. The time information display circuitry displays time information relative to a time to display a graph based on the specified data item. The instruction receiver receives an instruction for starting display of the graph. The graph display circuitry displays the graph when the instruction is received.

Abstract: A program information generating system includes an acquisition unit, a generating unit, and display control unit. The acquiring unit acquires program information which represents structure of a computer program and operation information which represents structure of operations. The generating unit generates first display information for generating a first display image which visually represents the structure of the computer program and second display information for generating a second display image which visually represents the structure of the operations. The program information includes section information which identifies a position of sections included in the computer program. The operation information includes section identification information which identifies the section corresponding to the operations.

Abstract: A system according to embodiments comprises first to third acquisition units and first and second creation units. The first acquisition unit may acquire event information including timeline information about an execution time or an execution order of at least one event. The second acquisition unit may acquire axis information including first axis information for deciding an first coordinate axis of a timeline about the execution time or the execution order of the event. The third acquisition unit may acquire event specific information for specifying the event information. The first creation unit may create a first axis object representing the first coordinate axis based on the axis information.

Abstract: A program information generating system includes an acquisition unit that acquires dependency information indicating dependency among a plurality of events generated by execution of a program and selection information identifying a selected event that is the event selected by a user; a generation unit that generates display information, on the basis of the dependency information and the selection information, such that a dependency path that is formed of the plurality of events having the dependency and includes the selected event is displayed in a distinguishable manner; and a display control unit that controls a display unit, on the basis of the display information, such that a display image indicating an execution state of the program is displayed.

Abstract: According to an embodiment, an information processing apparatus includes a storage, an accepting unit, an analyzer, a determination unit, and an output controller. The storage stores therein one or more pieces of first feature information respectively representing features of one or more source codes, and one or more pieces of assistance information representing update situations of the source codes, in a corresponding manner. The accepting unit accepts input of second feature information representing a feature of a source code to be analyzed. The analyzer calculates similarity between the first feature information and the second feature information. The determination unit selects, based on the similarity, assistance information to be output, from the pieces of assistance information stored in the storage. The output controller outputs the selected assistance information.

Abstract: A system according to an embodiment may include: a generation unit that acquires axis information in a coordinate system drawing execution status of a program, and generates an axis object representing the coordinate system based on the axis information; a display event information generation unit that acquires event information related to each of the two or more events and program structure information related to a section of the program generating the two or more events, and generates display event information related to one or more display events representing the two or more events; and an object generation unit that acquires the display event information and display event unit information indicating a display unit of the display event, and generates one or more event objects based on the display event information and the display event unit information.

Abstract: A system according to an embodiment is configured to display program execution results with respect to a common axis. The system includes a first unit that acquires event information about two or more events, acquires reference-event identification information to be used in identifying reference events, and generates event objects which represent the events, and a second unit that acquires axis information which represents information about the common axis. The event information contains timing information indicating positions of the events. The first unit sets the reference events as references for the program execution results based on the acquired reference-event identification information, determines display positions of the reference events with respect to the common axis to be same position based on timing information in event information about the reference events, and generates event objects representing the reference events based on the determined display positions with respect to the common axis.

Abstract: In a system according to any one of embodiments, program structure information may include interval information. Each interval information may include source code position information indicating a successive region on a source code of a target program and parent-child information for specifying a parent-child relationship with respect to the interval information. The program structure information may include a reference interval without a parent. A processing unit may specify the number of parents existing between each interval information and the reference interval as a depth of each interval information from the reference interval, and create display information by arranging the interval information on a coordinate system defined by a first axis representing depth from the reference interval and a second axis representing the parent-child relationship based on the depth from the reference and the parent-child information.

Abstract: According to an embodiment, based on task border information, and first-type dependency relationship information containing N number of nodes corresponding to data accesses to one set of data, containing edges representing dependency relationship between the nodes, and having at least one node with an access reliability flag indicating reliability/unreliability of corresponding data access; task border edges, of edges extending over task borders, are identified that have an unreliable access node linked to at least one end, and presentation information containing unreliable access nodes is generated. According to dependency existence information input corresponding to the set of data, conversion information indicating absence of data access to the unreliable access nodes is output.

Abstract: A system according to embodiments comprises first to third acquisition units and first and second creation units. The first acquisition unit may acquire event information including timeline information about an execution time or an execution order of at least one event. The second acquisition unit may acquire axis information including first axis information for deciding an first coordinate axis of a timeline about the execution time or the execution order of the event. The third acquisition unit may acquire event specific information for specifying the event information. The first creation unit may create a first axis object representing the first coordinate axis based on the axis information.

Abstract: In a system according to an embodiment, program structure information may include interval information. Each interval information may include source code position information indicating a successive region on a source code of a target program and parent-child information for specifying a parent-child relationship with respect to the interval information. The program structure information may include a reference interval without a parent. A processing unit may specify the number of parents existing between each interval information and the reference interval as a depth of each interval information from the reference interval, and create display information by arranging the interval information on a coordinate system defined by a first axis representing depth from the reference interval and a second axis representing the parent-child relationship based on the depth from the reference and the parent-child information.

Abstract: According to an embodiment, a system includes an analysis generator, a trace difference generator, a program difference generator, and an analyzer. The analysis generator is configured to generate program information required in executing a program, generate trace information providing a description of an execution at particular timing, based on the program information, and generate a trace correspondence between the trace and program information. The trace difference generator is configured to generate a trace difference between first and second trace information. The program difference generator is configured to generate a program difference between first and second program information. The analyzer is configured to analyze a correspondence relation between the differences and the program information based on the trace correspondence.

Abstract: According to one embodiment, a parallelizing unit divides a loop into first and second processes based on a program to be converted and division information. The first and second processes respectively have termination control information, loop control information, and change information. The parallelizing unit inserts into the first process a determination process determining whether the second process is terminated at execution of an (n?1)th iteration of the second process when the second process is subsequent to the first process or determining whether the second process is terminated at execution of an nth iteration of the second process when the second process precedes the first process. The parallelizing unit inserts into the second process a control process controlling execution of the second process based on the result of determination notified by the determination process.

Abstract: According to one embodiment, a first program code including a plurality of variables is converted to a second program code to be executed by a multi-core processor including a plurality of cores. Specifically, an access pattern of each variable in the first program code is decided. All variables in the first program code are classified into a plurality of groups each of which variables belong to the same access pattern. A member structure of each group having variables belonging to the same access pattern is created. Each member structure includes variables of one group. A route-pointer indicating an address (in a memory) of variables of the member structure is created. The variables in the first program code are converted to the member structure and the route-pointer (in the second program code) that indicate the variables. The second program code is outputted to the multi-core processor.

Abstract: According to one embodiment, a program converting device includes an access attribute determining unit, a non-sharing target classifying unit, and a converting unit. The access attribute determining unit calculates exclusive accesses from memory accesses by threads forming a source program and determines a memory access using a cache memory among the calculated exclusive accesses. The non-sharing target classifying unit determines an access data item that does not share a cache line with another access data item among the access data items that are accessed using the cache memories. The converting unit inserts a process that does not share the cache line into the source program based on the determination result of the non-sharing target classifying unit.

Abstract: It is to provide: a generation unit configured to generate one or more reference relationship pairs with reference certainty information of “uncertainty” as presentation information based on first reference relationship information showing whether it is “certain” for the reference data to refer the referenced data or it is “uncertain” for the reference data to refer the referenced data, every reference relationship pair formed with reference data and referenced data; and a conversion unit configured to convert the first reference relationship information into second reference relationship information using an input of a reference relationship for presentation information and reference dependence relationship information showing a dependence relationship between reference relationship pairs.

Abstract: According to one embodiment, a program converting device includes an access attribute determining unit, a non-sharing target classifying unit, and a converting unit. The access attribute determining unit calculates exclusive accesses from memory accesses by threads forming a source program and determines a memory access using a cache memory among the calculated exclusive accesses. The non-sharing target classifying unit determines an access data item that does not share a cache line with another access data item among the access data items that are accessed using the cache memories. The converting unit inserts a process that does not share the cache line into the source program based on the determination result of the non-sharing target classifying unit.

Abstract: According to an embodiment, based on task border information, and first-type dependency relationship information containing N number of nodes corresponding to data accesses to one set of data, containing edges representing dependency relationship between the nodes, and having at least one node with an access reliability flag indicating reliability/unreliability of corresponding data access; task border edges, of edges extending over task borders, are identified that have an unreliable access node linked to at least one end, and presentation information containing unreliable access nodes is generated. According to dependency existence information input corresponding to the set of data, conversion information indicating absence of data access to the unreliable access nodes is output.