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How to model cosmic ray corruption of DRAM memory?
I'd like to study how well Chipkill advanced ECC detects
multiple errors in a DRAM memory module. I've written software that implements the Chipkill algorithm, and now I'm seeking more detail about exactly how cosmic rays can corrupt DRAM bits. Such as, when a cosmic ray changes a bit in DRAM, how many adjacent bits on the average are likely to be affected as well? What would be the probability density of the number of bits altered per cosmic ray strike? Of course, it's likely to depend on the density of the DRAM. I'd much appreciate any information anyone can provide on this. --Bob Day http://bobday.vze.com |
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