Parallel redundant calculations - does this make sense ?

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multi-threading

parallel

A thought flashed in my mind about a month ago and I am still thinking about it. On one hand, it may seem like a joke, on the other hand, it can have a very serious background. I decided to share it with the community and ask their opinion.

Once I faced a memory fault in the platform that affected the application durability. And I thought:
- RAID is a well-known technology. It has been designed to increase durability of data storage using independent (or inexpensive) disks.;
- CPU and RAM are cheaper and parallelized (more independent) now;
- Can we introduce technology named say as RPTC (Redundant Parallel Thread Calculations) where the same calculations will be performed independently in parallel like RAID stores data ?

So, if independent calculations produce the same result it will mean that the process has been performed without error. If results differ – the error has occurred. As an advantage – more durable calculations.

The serious reason for considering this technique is likelihood of hardware RAM errors and increased volume of calculations. As it is known RAM chips can produce failure (you can find information in Internet).

Areas of application: nuclear plants, medicine, space, - any relevant areas.

Does this make sense ?

What I have tried:

Once the application started to report memory fragmentation errors (OS or Hardware level). Application worked in virtual machine. Only after rebooting guest and host the problem disappears. I an a programmer, but not a system engineer. But it seems that virtualization increases likelihood of platform error.