Abstract: Methods, systems, and articles of manufacture consistent with the present invention coordinate distribution of shared memory to threads of control executing in a program by using a cooperative synchronization protocol. The protocol serializes access to memory by competing threads requesting assignment of memory space, while allowing competing threads that have already been assigned memory space, to share access to the memory. A designated area of memory assigns the memory to requesting threads. The protocol is an application level entity and therefore does access the operating system to serialize the memory allocation process.

Abstract: Method, systems and articles of manufacture consistent with the present invention collects and displays performance data associated with executed programs. A system consistent with an implementation of the present invention collects performance analysis information from various hardware and software components of an instrumented program, and displays the performance data in a multi-dimensional format.

Abstract: Method, systems and articles of manufacture consistent with the present invention collects and displays performance data associated with executed programs. A system consistent with an implementation of the present invention collects performance analysis information from various hardware and software components of an instrumented program, and displays the performance data in a multi-dimensional format.

Abstract: Methods, systems, and articles of manufacture consistent with the present invention coordinate distribution of shared memory to threads of control executing in a program by using a cooperative synchronization protocol. The protocol serializes access to memory by competing threads requesting assignment of memory space, while allowing competing threads that have already been assigned memory space, to share access to the memory. A designated area of memory assigns the memory to requesting threads. The protocol is an application level entity and therefore does access the operating system to serialize the memory allocation process.

Abstract: Methods, systems, and articles of manufacture consistent with the present invention assist a programmer in the optimization of an application program by displaying information about memory use in a manner useful to the programmer. A programmer selects an application program that he wishes to optimize. The application program is submitted to an instrumentation process that inserts additional instructions into the code of the application program so that, when executed, the instrumented code produces an output file, called a trace output file. The trace output file contains information about memory accesses. The trace output file is then submitted to a second program, or visualizer, that visually displays the memory accesses using a different visual effect for each type of memory access operation. The visualizer may be run at different speeds, forwards or backwards, paused, or may step through the memory accesses frame-by-frame.

Abstract: Methods, systems, and articles of manufacture consistent with the present invention coordinate distribution of shared memory to threads of control executing in a program by using a cooperative synchronization protocol. The protocol serializes access to memory by competing threads requesting assignment of memory space, while allowing competing threads that have already been assigned memory space, to share access to the memory. A designated area of memory assigns the memory to requesting threads. The protocol is an application level entity and therefore does access the operating system to serialize the memory allocation process.