Research on GPU soft error rates have shown a correlation to environmental and temperature effects : the G80, used in your Nvidia 9100M, was known to suffer from high soft-error rate.
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Due to the high integration density of contemporary computer memory serversare equipped with, and together with extended periods of uptime, the probability of soft errors in the total memory installed is significant.
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As the chip industry moves toward line widths as fine as 0.18 microns _ about one five-hundredths of the width of a human hair _ soft errors in data are a growing concern.
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Another common concept to correct soft errors in logic circuits is temporal ( or time ) redundancy, in which one circuit operates on the same data multiple times and compares subsequent evaluations for consistency.
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Package materials for high-density dynamic memory must be selected for low background radiation; a single alpha particle emitted by package material can cause a single event upset and transient memory errors ( soft errors ).
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As the chip industry moves toward line widths as fine as 0 . 18 microns _ about one five-hundredths of the width of a human hair _ soft errors in data are a growing concern.
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In the first large-scale test of GPU scientific accuracy, a 2010 study of over 20, 000 hosts on the Folding @ home network detected soft errors in the memory subsystems of two-thirds of the tested GPUs.
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To defeat soft errors without adding to the size of the chip, . . . nal design, they were able to lower the chances that a logic bit-a one or a zero-would be altered by radiation.
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Heisenbugs can be viewed as instances of the phase of the moon, or ( if it has occurred only once ) may explain it away as a soft error due to alpha particles or cosmic rays affecting the hardware.
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Also, in safety-or cost-critical applications where the cost of system failure far outweighs the cost of the system itself, a 1 % chance of soft error failure per lifetime may be too high to be acceptable to the customer.
