Questions tagged [parallel]

The tag has no usage guidance.

9 questions
Filter by
Sorted by
Tagged with
1 vote
61 views

On parallel complexity of modular inverse

Modular inverse is not known to be in $NC$ either. How about the cases where the modulus is just $2^k +i$ where $i\in\{-1,0,1\}$? Are these cases in $NC$?
61 views

Unclear explanation of basic parallel DAG computation

Consider computation represented as a DAG, without if-then-else conditions, where nodes represent tasks and edges represent data dependencies. For example, A->B->C means that there are 3 tasks ...
78 views

How to know if a problem is distributable?

I am new to the world of Parallel computing and that is why don't know exactly where I should look at or search to get the answer. Is there any theorem or just general theory determining which code ...
124 views

parallel algorithms for the determinant of the Hessenberg matrix

I am interested in highly parallel algorithms for computing the determinant of matrices of a special form (over finite fields). It is known that computing determinant of general matrices over finite ...
52 views

Best complexity bound for parallel matrix-vector product?

I'm looking for the best known complexity (and a bound for the number of processors invoved) to do the calculation of a $(n,n)$ matrix-vector product. Thank you
119 views

Is Ralf Hinze's Discriminator sort parallelizable?

According to this slide - the following sorting algorithms Merge Sort Insertion Sort Bubble Sort Quicksort Bogosort all rely on cmp - which has a fixed upper ...
415 views

Finding optimal parallelization from general weighted undirected graph

I am solving a problem of "blending" sets of overlapping images. These sets can be represented by undirected weighted graph such as this one: Each node represents an image. Overlapping images are ...