Importance of Cache in the performance of the calculation

Question

Kamuran 2015-9-13

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https://ww2.mathworks.cn/matlabcentral/answers/242710-importance-of-cache-in-the-performance-of-the-calculation

回答： Walter Roberson 2015-9-13

Hello,

I am trying to build a workstation for specifically Matlab calculations. I will be working with huge matrices maybe even up to 1 M by 1 M. For me it is important to be able to create large matrices rather than speed that I am solving them. So CPU is of second importance. But I am not sure how the cache amount would effect the performance of the CPU in my calculations. I have two options both XEON processors. One with 10 Mb cache and another with 15 Mb. I am aware that frequency and number of cores are variables too but I just want to understand the role of cache in such large calculations.

Thank you

Erdem