Abstract: A method includes selecting a set of transaction records from an accounting function, selecting a set of transaction records from a logical deployment unit, and checking the set of transaction records from the accounting function against the set of transaction records from a logical deployment unit, wherein the accounting function is separate from the logical deployment unit. A system includes a logical deployment unit, an accounting component separate from the logical deployment unit, a messaging system for sending messages from the logical deployment unit to the accounting component, and a checking mechanism.

Abstract: There is provided a memory for storing data comprising: a fast data reading mechanism operable to read a data value from said memory to generate a fast read result that is output from said memory for further processing; a slow data reading mechanism operable to read said data value from said memory to generate a slow read result available after said fast read result has been output for further processing, said slow data reading mechanism being less prone to error in reading said data value than said fast data reading mechanism; a comparator operable to compare said fast read result and said slow read result to detect if said fast read result differs from said slow read result; and error repair logic operable if said comparator detects that said fast read result differs from said slow read result to suppress said further processing using said fast read result, to output said slow read result in place of said fast read result and to restart said further processing based upon said slow read result.

Abstract: There is provided a memory for storing data comprising: a fast data reading mechanism operable to read a data value from said memory to generate a fast read result that is output from said memory for further processing; a slow data reading mechanism operable to read said data value from said memory to generate a slow read result available after said fast read result has been output for further processing, said slow data reading mechanism being less prone to error in reading said data value than said fast data reading mechanism a comparator operable to compare said fast read result and said slow read result to detect if said fast read result differs from said slow read result; and error repair logic operable if said comparator detects that said, fast read result differs from said slow read result to suppress said further processing using said fast read result, to output said slow read result in place of said fast read result and to restart said further processing based upon said slow read result.

Abstract: There is provided a memory for storing data comprising:

Abstract: An apparatus and method allow analyzing the performance of a computer program. The computer program is initially executed according to a predefined set of program execution conditions. As the computer program executes, information for each code segment is logged. Using the logged performance data, a graphical representation of the executed computer program is constructed. A user can then formulate ad hoc queries to analyze any desired performance parameters for the computer program by replaying how the computer program ran using the graphical representation of the executed computer program. The present invention thus allows a user to detect via queries complex performance bottlenecks that are caused by interactions between multiple code segments.

Abstract: There is provided an air separation apparatus comprising, in fluid flow communication, a compressor having at least two stages in senes, a first outlet from a stage upstream of the final stage, an air purifier in fluid flow communication with the outlet and producing purified air in two parallel flow paths. One of the flow paths is in fluid flow communication, through a heat exchanger, to a rectification column that produces a purified nitrogen product. The second flow path in fluid flow communication with an inlet of the compressor downstream of the chosen stage and provides a purified air product via the compressor through a second outlet thereof also downstream of the chosen stage.