2756 results about "Compiler" patented technology

An adaptive method, system and program for securing data against a plurality of electronic and environmental events directed at computers utilizes a hacking monitor which generates attack warnings (such as a hacking warning) dependent upon the severity of the attack. Based upon these warnings, data is filtered to extract security sensitive words etc. and the extract and remainder data (if necessary) is stored in assigned memory. Full or partial reconstruction is permitted, manually or automatically, with a security clearance. Encryption is typically used dependent upon the warning. The information processing system includes a filter which is adjusted based upon the degree of attack warning to extract security sensitive words. A storage system stores extracted data and remainder data (if necessary) based upon the level of the warning and a compiler is used to reconstruct the data in the presence of the appropriate security clearance level.

An automated processor design tool uses a description of customized processor instruction set extensions in a standardized language to develop a configurable definition of a target instruction set, a Hardware Description Language description of circuitry necessary to implement the instruction set, and development tools such as a compiler, assembler, debugger and simulator which can be used to develop applications for the processor and to verify it. Implementation of the processor circuitry can be optimized for various criteria such as area, power consumption, speed and the like. Once a processor configuration is developed, it can be tested and inputs to the system modified to iteratively optimize the processor implementation. By providing a constrained domain of extensions and optimizations, the process can be automated to a high degree, thereby facilitating fast and reliable development.

Method, system, and computer program product for implementing derivative operators at an interactive rate in computer graphics systems. In an embodiment, a data structure representing the operation of one or more computer program statements is received by a compiler and transformed into a tree data structure. Nodes of the tree data structure that determine derivative information are marked, and a transform rule is applied to the marked nodes to transform the tree data structure into a data structure that can be implemented with graphics hardware interface program statements. In one embodiment of the invention, the compiler transforms shading language statements into graphics application programming interface statements that can be implemented with multiple passes through a graphics pipeline. It is a feature of the present invention that it can be implemented on a wide range of computer graphics systems.

The present invention provides a method and a system for a real-time configurable definition and generation of grating profile libraries. A parameter set is used to specify the ranges of grating dimensions and resolutions of the profile library to be generated. In one embodiment, a compiler creates subsets of a large profile library, the subset designed to enable rapid search and validation of real-time data. In another embodiment, an automatic process generates a new parameter set and a new subset of the library when trigger conditions are met. Subsets of the profile library may be used to check if grating spectrum data are within the ranges established for an application and if the dimensions are within the process averages established for a manufacturing run. The system for generation of grating profile libraries is scalable, operable in a distributed environment, and includes application specific items that can be selected or determined by the client.

A system and methodology for providing a Unified Modeling Language (UML) diagram of a program for display in a graphical user interface of a development system is described. Relationships between a plurality of files of a program are determined using a compiler. When a request for display of a UML diagram is received, a UML diagram of the currently selected file is generated based upon the determined relationships between the currently selected file and other files of the program. The UML diagram displayed in the graphical user interface enables a user to navigate to a particular file of the program by selecting one of the nodes of the UML diagram. The system enables a user to view source code or a UML diagram of a particular component displayed in the UML diagram.

The present invention provides a system and method for implementing logic control in programmable controllers in distributed control systems using a wired or wireless network. A software application is used to define the configuration of the network. Based on the network configuration, a compiler engine automatically assigns each statement of the control program to at least one programmable logic controller in the network. Each statement is then transmitted over a data transmission medium to the programmable logic controller assigned to the statement.

A method of producing a reconfigurable circuit device for running a computer program of moderate complexity such as multimedia processing. Code for the application is compiled into Control Flow Graphs representing distinct parts of the application to be run. From those Control Flow Graphs are extracted basic blocks. The basic blocks are converted to Data Flow Graphs by a compiler utility. From two or more Data Flow Graphs, a largest common subgraph is determined. The largest common subgraph is ASAP scheduled and substituted back into the Data Flow Graphs which also have been scheduled. The separate Data Flow Graphs containing the scheduled largest common subgraph are converted to data paths that are then combined to form code for operating the application. The largest common subgraph is effected in hardware that is shared among the parts of the application from which the Data Flow Graphs were developed. Scheduling of the overall code is effected for sequencing, providing fastest run times and the code is implemented in hardware by partitioning and placement of processing elements on a chip and design of the connective fabric for the design elements.

A heterogeneous multiprocessor system including a plurality of processor elements having mutually different instruction sets and structures avoids a specific processor element from being short of resources to improve throughput. An executable task is extracted based on a preset depending relationship between a plurality of tasks, and the plurality of first processors are allocated to a general-purpose processor group based on a depending relationship among the extracted tasks. A second processor is allocated to an accelerator group, a task to be allocated is determined from the extracted tasks based on a priority value for each of tasks, and an execution cost of executing the determined task by the first processor is compared with an execution cost of executing the task by the second processor. The task is allocated to one of the general-purpose processor group and the accelerator group that is judged to be lower as a result of the cost comparison.

A method, apparatus, and computer instructions in a data processing system for processing instructions are provided. Instructions are received at a processor in the data processing system. If a selected indicator is associated with the instruction, counting of each event associated with the execution of the instruction is enabled. In some embodiments, a compiler may obtain performance profile data, annotated by output obtained from the use of the performance indicators and counters, along with the instructions/data of the computer program and use this information to optimize the manner by which the computer program is executed, instructions/data are stored, and the like. The optimizations may be to optimize the instruction paths, optimize the time spent in initial application load, the manner by which the cache and memory is utilized, and the like.

Error-free state tables are automatically generated from a specification of a group of desired performable functions, such as are provided in a programming language in a formal notation such as Backus-Naur form or a derivative thereof by discriminating tokens corresponding to respective performable functions, identifications, arguments, syntax, grammar rules, special symbols and the like. The tokens may be recursive (e.g. infinite), in which case they are transformed into a finite automata which may be deterministic or non-deterministic. Non-deterministic finite automata are transformed into deterministic finite automata and then into state transitions which are used to build a state table which can then be stored or, preferably, loaded into a finite state machine of a hardware parser accelerator to define its personality.

A general-purpose programming environment allows users to program a GPU as a general-purpose computation engine using familiar C/C++ programming constructs. Users may use declaration specifiers to identify which portions of a program are to be compiled for a CPU or a GPU. Specifically, functions, objects and variables may be specified for GPU binary compilation using declaration specifiers. A compiler separates the GPU binary code and the CPU binary code in a source file using the declaration specifiers. The location of objects and variables in different memory locations in the system may be identified using the declaration specifiers. CTA threading information is also provided for the GPU to support parallel processing.

A smart memory computing system that uses smart memory for massive data storage as well as for massive parallel execution is disclosed. The data stored in the smart memory can be accessed just like the conventional main memory, but the smart memory also has many execution units to process data in situ. The smart memory computing system offers improved performance and reduced costs for those programs having massive data-level parallelism. This smart memory computing system is able to take advantage of data-level parallelism to improve execution speed by, for example, use of inventive aspects such as algorithm mapping, compiler techniques, architecture features, and specialized instruction sets.

A method and several variants for using information about the scope of access of objects acted upon by mutual exclusion, or mutex, locks to transform a computer program by eliminating locking operations from the program or simplifying the locking operations, while strictly performing the semantics of the original program. In particular, if it can be determined by a compiler that the object locked can only be accessed by a single thread it is not necessary to perform the "acquire" or "release" part of the locking operation, and only its side effects must be performed. Likewise, if it can be determined that the side effects of a locking operation acting on a variable which is locked in multiple threads are not needed, then only the locking operation, and not the side effects, needs to be performed. This simplifies the locking operation, and leads to faster programs which use fewer computer processor resources to execute; and programs which perform fewer shared memory accesses, which in turn not only causes the optimized program, but also other programs executing on the same computing machine to execute faster. The method also describes how information about the semantics of the locking operation side effects and the information about the scope of access can also be used to eliminate performing the side effect parts of the locking operation, thereby completely eliminating the locking operation. The method also describes how to analyze the program to compute the necessary information about the scope of access. Variants of the method show how one or several of the features of the method may be performed.

A stream processing platform that provides fast execution of stream processing applications within a safe runtime environment. The platform includes a stream compiler that converts a representation of a stream processing application into executable program modules for a safe environment. The platform allows users to specify aspects of the program that contribute to generation of modules that execute as intended. A user may specify aspects to control a type of implementation for loops, order of execution for parallel paths, whether multiple instances of an operation can be performed in parallel or whether certain operations should be executed in separate threads. In addition, the stream compiler may generate executable modules in a way that cause a safe runtime environment to allocate memory or otherwise operate efficiently.

Internal variables generated by a compiler are assigned to machine resources such as registers and memory by the resource assigning unit 11, and when the assembler code generation unit 18 has outputted an instruction sequence, the alias accessibility analyzing unit 19 registers memory access instructions in the instruction sequence in the assigned resource information 14 according to whether the instructions have a possibility of access by alias. The assembler code optimization unit 20 refers to the assigned resource information 14 and performs optimization at assembler level, thereby reducing the program size and execution time of the instruction sequence.

A method for executing a code is provided. The method includes receiving a trigger instruction, selecting an entry in a trigger table, the entry associated with the trigger instruction, and executing an auxiliary code referenced by the entry in the trigger table.

Disclosed is a system for debugging a computer program. A user indicates a specified breakpoint type, such as a program statement, variable reference, command, etc. The program, including program statements, is then compiled. During compilation, the compiler locates statements in the program corresponding to the breakpoint types and generates a function call into the program at instances in the program of statements corresponding to the user specified breakpoint types. During a debugging phase, a debugger may execute an executable version of the program, including the function calls. Upon processing the function calls, the debugger may stop execution of the program and pass control to the user to perform debugging operations.

The present invention relates to a data processing apparatus and method for compiling application code. The data processing apparatus comprises a processor, and a compiler for compiling application code to generate instructions for execution by the processor. Furthermore, a non-invasive trace unit is coupled to the processor for generating, from input signals received from the processor, trace signals indicative of the instructions being executed by the processor. The compiler is then arranged to control the compilation of the application code dependent on the trace signals. The non-invasive nature of the trace unit enables it to generate trace signals that can be used to produce profiling information for use by the compiler without altering the behaviour of the code being executed by the processor, and accordingly provides a significantly improved technique for obtaining profiling information for use in feedback driven optimisation compilation techniques.

A reconfigurable web-browser compatible data query system. The invention provides an XML platform enabling web-based forms that query data modeled by data schemas. This platform comprises a collection of query form controls, an annotation scheme for attaching these controls to the data schema, a compiler for creating a web-browser-compatible representation of the query form, and a run-time engine for constructing queries against the data and rendering query results.