This paper compares the performance of seven different element agglomeration algorithms on unstructured triangular/tetrahedral meshes when used as part a geometric multigrid. Five these come from literature AMGe multigrid and mesh partitioning methods. The resulting schemes are tested matrix-free two problems in 2D 3D taken radiation transport applications; one which is diffusion limit. In dime...

Therapists certified in lymphedema management are skilled and prepared to address male genital edema mainly through manual lymphatic drainage and compression bandaging. That being said, there remains a need to further develop and establish treatment protocols in this area of edema management, especially in inpatient, acute care hospital settings. Many individuals who are hospitalized for variou...

We present a performance analysis of a novel element-based algebraic multigrid (AMGe) method combined with a robust coarse-grid solution technique based on HSS lowrank sparse factorization. Our test datasets come from the SPE Comparative Solution Project for oil reservoir simulations. The current performance study focuses on one multicore node and on bound analysis using the roofline technique....

This paper is to give an overview of AMG methods for solving large scale systems of equations such as those from the discretization of partial differential equations. AMG is often understood as the acronym of “Algebraic Multi-Grid”, but it can also be understood as “Abstract Muti-Grid”. Indeed, as it demonstrates in this paper, how and why an algebraic multigrid method can be better understood ...

in order to study genotype  environment interaction (g  e) and to identify high yielding and stable genotypes, 17 safflower (carthamus tinctorius l.) genotypes were evaluated in a randomized complete block design with 3 replications, at 9 research stations during four consecutive cropping seasons (2003–06) under rainfed conditions. on the basis of ammi analysis of variance, effects of genotyp...

ion function, generalised to allow for non-idempotent substitutions. We conclude in Section 5. 2 Equations and Substitutions 2.1 Notation For a set S, #S is the cardinality of S, }(S) is the powerset of S, whereas }f(S) is the set of all the nite subsets of S. The symbol Vars denotes a denumerable set of variables, whereas TVars denotes the set of rst-order terms over Vars for some given set of...