摘要:
One embodiment of a method for constructing executable code for a component-based application includes receiving a request to compile source code for the component-based application, wherein the request identifies the source code, and wherein the source code comprises a plurality of source code components, each of the source code components implementing a different component of the application, and performing a series of steps for each source code component where the series of steps includes: deriving a signature for the source code component, retrieving a stored signature corresponding to a currently available instance of executable code for the source code component, comparing the derived signature with the stored signature, compiling the source code component into the executable code when the derived signature does not match the stored signature, and obtaining the executable code for the source code component from a repository when the derived signature matches the stored signature.
摘要:
One embodiment of a method for constructing executable code for a component-based application includes receiving a request to compile source code for the component-based application, wherein the request identifies the source code, and wherein the source code comprises a plurality of source code components, each of the source code components implementing a different component of the application, and performing a series of steps for each source code component where the series of steps includes: deriving a signature for the source code component, retrieving a stored signature corresponding to a currently available instance of executable code for the source code component, comparing the derived signature with the stored signature, compiling the source code component into the executable code when the derived signature does not match the stored signature, and obtaining the executable code for the source code component from a repository when the derived signature matches the stored signature.
摘要:
A method of transforming relational queries of a database into on a data processing system includes receiving a series of relational queries, transforming first parts of the queries into a continuous query embodied as a streaming application, sending parameters in second parts of the queries in the series to the streaming application as a data stream, and executing the continuous query based on the received data stream to generate query results for the series of relational queries. Each query in the series includes a first part and a second part. The first parts are a pattern common to all the queries in the series and the second parts each have one or more parameters that are not common to all of the queries in the series.
摘要:
A method of transforming relational queries of a database into on a data processing system includes receiving a series of relational queries, transforming first parts of the queries into a continuous query embodied as a streaming application, sending parameters in second parts of the queries in the series to the streaming application as a data stream, and executing the continuous query based on the received data stream to generate query results for the series of relational queries. Each query in the series includes a first part and a second part. The first parts are a pattern common to all the queries in the series and the second parts each have one or more parameters that are not common to all of the queries in the series.
摘要:
In one embodiment, the invention is a method and apparatus for use of vectorization instruction sets. One embodiment of a method for generating vector instructions includes receiving source code written in a high-level programming language, wherein the source code includes at least one high-level instruction that performs multiple operations on a plurality of vector operands, and compiling the high-level instruction(s) into one or more low-level instructions, wherein the low-level instructions are in an instruction set of a specific computer architecture.
摘要:
A virtual execution environment (VEE) for a streaming Intermediate Language (IL), wherein the streaming IL represents a streaming program, communicates streaming data in queues, stores data-at-rest in variables, and determines data by functions, where inputs are read from the queues and the variables, and outputs are written to the queues and the variables.
摘要:
A method and computer program product for selecting an expression evaluation technique for domain-specific language (DSL) compilation. An application written in DSL for a programming task is provided, the application including a plurality of components configured by expressions. A technique that most quickly implements the programming task is selected from a plurality of techniques for evaluating the expressions. The DSL application is compiled in accordance with the selected expression evaluation technique to generate general-purpose programming language (GPL) code.
摘要:
A virtual execution environment (VEE) for a streaming Intermediate Language (IL), wherein the streaming IL represents a streaming program, communicates streaming data in queues, stores data-at-rest in variables, and determines data by functions, where inputs are read from the queues and the variables, and outputs are written to the queues and the variables.
摘要:
Techniques for performing capacity planning for applications running on a computational infrastructure are provided. The techniques include instrumenting an application under development to receive one or more performance metrics under a physical deployment plan, receiving the one or more performance metrics from the computational infrastructure hosting one or more applications that are currently running, using a predictive inference engine to determine how the application under development can be deployed, and using the determination to perform capacity planning for the applications on the computational infrastructure.
摘要:
In one embodiment, the invention comprises partial fault tolerant stream processing applications. One embodiment of a method for implementing partial fault tolerance in a stream processing application comprising a plurality of stream operators includes: defining a quality score function that expresses how well the application is performing quantitatively, injecting a fault into at least one of the plurality of operators, assessing an impact of the fault on the quality score function, and selecting at least one partial fault-tolerant technique for implementation in the application based on the quantitative metric-driven assessment.