Parallel port can be used to send the data and as various control actions to be taken for external event control.The default address for parallel port is 0x378. The code is compiled under linux and found to work ok.In outb file simply pass the valu

这是两个Linux VTune功能测试程序。serialpi是单线程求π值的应用，而threadpi是根据处理器最佳并行数设置的多线程求π值的应用，这两个程序可以演示VTune演示多线程并行的性能改善。-This is the Linux VTune functional test procedures. serialpi is single-threaded seek the value of π the applications threadpi is the application bas