# Questions tagged [high-performance-computing]

The tag has no usage guidance.

9 questions
Filter by
Sorted by
Tagged with
23 views

### Difficulty understanding how federation increases cache performance for databases?

I am studying system design for distributed systems and in this page (https://github.com/donnemartin/system-design-primer), one of the following advantages was mentioned for federation for databases ...
• 125
37 views

### Is there a way to convert FLOPS to bit operation per second

My problem is the following: I have $N$ inner products to compute in parallel every second. Each of the vectors in those inner product is composed of $7$ bits. I want to know for which $N$ it starts ...
• 105
29 views

### What are the realistic benefits that ARM chips can bring to supercomputers?

Supercomputing is faced with the power wall challenge where the design of more powerful supercomputers has to ensure that their eventual operation is power efficient enough to be economically viable. ...
1 vote
328 views

### What is the difference between FLOPS and OPS?

I have typically heard computer performance discussed in terms of FLOPS. However, I have recently seen multiple references instead using OPS i.e. operations per second, typically in the context of Big ...
• 111
1 vote
30 views

### Explanation of roofline model

I am currently studying the roofline model. Wikipedia [2] shows the following example graph: The diagonal line shows $\beta * I$. But I do not understand why this line does not go through the zero ...
45 views

### How fast we can run 128-bit LCG generator?

Let's consider some 128-bit LCG generator mod $2^{128}$, with some random 128-bit multiplier and increment. How fast we can run it using the same tricks like in AES: https://crypto.stackexchange.com/...
• 133
24 views

### Is it possible to generate a better random number generator algorithm from an algorithm that use N computers with one that uses N+1 computers?

Is it possible to generate a better random number generator algorithm from an algorithm that use N number of computers with an algorithm that uses N+1 number of computers? I use the word computer here,...
Say I have $n$ threads executing in a parallel region and one of them leaves the parallel region when others are still continuing to execute in the parallel region. Why this is a $BAD$ idea? For ...