Von Neumann Syndrome
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High Quality Content by WIKIPEDIA articles! The von Neumann syndrome is a computing term coined by Prof. C. V. Ramamoorthy (after having listened to a keynote by Reiner Hartenstein, and named after John von Neumann's model of computer architecture). Ramamoorthy noted that for most applications in massively parallel computing systems with thousands or tens of thousands of processors the performance can be less than hoped. Sometimes called a "supercomputing crisis" it is believed to be due to two factors. Firstly a hardware barrier in the efficiency in moving data, called the memory wall or von…mehr

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High Quality Content by WIKIPEDIA articles! The von Neumann syndrome is a computing term coined by Prof. C. V. Ramamoorthy (after having listened to a keynote by Reiner Hartenstein, and named after John von Neumann's model of computer architecture). Ramamoorthy noted that for most applications in massively parallel computing systems with thousands or tens of thousands of processors the performance can be less than hoped. Sometimes called a "supercomputing crisis" it is believed to be due to two factors. Firstly a hardware barrier in the efficiency in moving data, called the memory wall or von Neumann bottleneck. Secondly a fall in programmer productivity when faced with systems that are massively parallel, the difficulties in developing for parallelism (or thread-level parallelism in multi-core CPUs) when previously this was not an issue.