Message‐passing performance of various computers

Message-Passing Performance of Various Computers

This report compares the performance of di erent computer systems for basic message passing. Latency and bandwidth are measured on Convex, Cray, Fujitsu, IBM, Intel, KSR, Meiko, nCUBE, NEC, SGI, and TMC multiprocessors. Communication performance is contrasted with the computational power of each system. The comparison includes both shared and distributed memory computers as well as networked wo...

Evaluating high-performance computers

Comparisons of high-performance computers based on their peak floating point performance are common but seldom useful when comparing performance on real workloads. Factors that influence sustained performance extend beyond a system’s floating-point units, and real applications exercise machines in complex and diverse ways. Even when it is possible to compare systems based on their performance, ...

Performance of Digital Neuro-computers

This paper deals with performance measurement and evaluation of digital neuro-computers. We discuss the constraints introduced by hardware implementations. A revisited deenition of computer speed-up is then proposed, taking into account both the traditional notion of parallelization speed-up and the algorithmic precision of the machines. Finally we show, on the example of the Kohonen feature ma...

Laptop Computers Measure Intersection Performance

More years ago than I care to admit, I spent many not-so-unpleasant hours standing on a street corner with one eye on the controller settings and the other on traffic, trying to optimize the controller settings by making minute adjustments to initial, extension, and maximum intervals. Even when I thought the settings could be no further improved, I worried that my “fine tuning” might not yield ...

Visualization of Program Performance on Concurrent Computers