Parallel computing those that use concurrency, are more difficult to write than sequential ones, because concurrency introduces several new classes of potential software bugs, of which race conditions are the most common. Communication and synchronization between the different subtasks are typically some of the greatest obstacles to getting good parallel program performance. A theoretical upper bound on the speed-up of a single program as a result of parallelization is given by Amdahl's law. Traditionally, computer software has been written for serial computation. To solve a problem, an algorithm is constructed and implemented as a serial stream of instructions. These instructions are executed
What If We Fall in Love? the NBC daytime soap opera of the same name; Crystal appeared in a few shows of the series around this time as herself, almost becoming a victim of the serial killer plot airing at the time. "Makin' Up for Lost Time" had been previously featured in the night time drama "Dallas". What If We Fall in Love? What If We Fall In Love is the only duet album by Crystal Gayle. All songs are performed by both Crystal Gayle and Gary Morris. Three of its tracks found positions on the Billboard Hot Country Singles chart. Chronologically, they were "Makin' Up