I've noticed this when I try to calculate the inverse of a 10,000 x 10,000 random matrix with Matlab or Octave. My computer just restarts without prompting any error message. I have already looked for similar issues on various forums with no success.
I've already proven that this is not related with memory usage since matrix inversion has a space complexity of O(n^2) and a time complexity of O(n^3). Memtest showed no RAM failures. Surely it is not due to the CPU temperature because this happens very suddenly. I suspect this may be related to the power supply.
I'm running Ubuntu 15.04 (64-bit) on an Intel Core i7-4790K, 2x8GB RAM Kingston Fury, Asus Z97-P motherboard, NVIDIA 980 GTX gpu, and Corsair CX750M power supply. Still have not tried this with Windows.
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