The network performance of virtual machines plays a critical role in Network Functions Virtualization (NFV), and several technologies have been developed to address hardware-level virtualization shortcomings. Recent advances operating system level deployment platforms such as Docker made containers an ideal candidate for high application encapsulation deployment. However, other solutions typically use lower-performing networking mechanisms. In this paper, we explore the feasibility using...

We present a deterministic distributed algorithm to compute all-pairs shortest paths (APSP) in an edge-weighted directed or undirected graph. Our runs Õ (n^3/2 ) rounds the Congest model, where n is number of nodes This first o(n^2) for weighted APSP problem. fairly simple and incorporates we develop computing 'blocker set' [King99], which has been used earlier sequential dynamic computation APSP.

Internet of Things (IoT) enables important data collection the sensor nodes at desired location through device-to-device communication. It helps us in various applications including tracking physical objects, human health monitoring, climate smart agriculture, manufacturing, field surveillance, and intelligent transportation. Since, these utilize multi-hop transmission framework, Quality-of-Service (QoS) such as delay, throughput, gathering reliability degrades destination nodes. In...

Global routing has become more challenging due to advancements in the technology node and ever-increasing size of chips. needs generate guides such that (1) routability detailed is considered (2) deterministic fast. In this paper, we firstly introduce soft capacity which reserves space for based on pin density Rectangular Uniform wire Density (RUDY). Second, propose a parallelization approach partitions netlist into batches then bulk-synchronously maze-routes single batch nets. The advantage...

We describe a novel multi-machine multi-GPU implementation of triangle counting which exploits application-agnostic graph partitioning strategy that eliminates almost all inter-host communication during counting. Experimental results show this distributed can handle very large graphs such as clueweb12, has one billion vertices and 37 edges, it is up to 1.6× faster than TriCore, the 2018 Graph Challenge champion.

We present new results for the distributed computation of all pairs shortest paths (APSP) in CONGEST model an n-node graph with moderate non-negative integer weights. Our methods can handle zero-weight edges which are known to difficulties APSP algorithms. The current best deterministic algorithm that handles zero weight is Õ(n <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3/2</sup> )-round Agarwal et al. [3] works arbitrary edge algorithms...

We present a new deterministic algorithm for distributed weighted all pairs shortest paths (APSP) in both undirected and directed graphs. Our runs ~O(n4/3 ) rounds the Congest models on graphs with arbitrary edge weights, it improves previous ~O(n3/2) bound of Agarwal et al. [ARKP18]. The main components our are faster technique constructing blocker set deterministically pipelined method propagating distance values from source nodes to network. Both these techniques have potential...

We consider the fine-grained complexity of sparse graph problems that currently have Õ(mn) time algorithms, where m is number edges and n vertices in input graph. This class includes several important path on both directed undirected graphs, including APSP, MWC (Minimum Weight Cycle), Radius, Eccentricities, BC (Betweenness Centrality), etc.

Hypergraph partitioning is used in many problem domains including VLSI design, linear algebra, Boolean satisfiability, and data mining. Most versions of this are NP-complete or NP-hard, so practical hypergraph partitioners generate approximate solutions for all but the smallest inputs. One way to speed up exploit parallelism. However, existing parallel not deterministic, which considered unacceptable like design where same partitions must be produced every time a given partitioned. In paper,...

We present algorithms and techniques for several problems related to finding multiple simple shortest paths cycles in a graph. Our main result is new algorithm k all pairs of vertices weighted directed graph G = (V, E). For 2 our runs O(mn + n^2 log n) time where m n are the number edges G. 3 O(mn^2 n^3 time, which almost factor faster than best previous algorithm. Our approach based on forming suitable path extensions find paths; this method different from 'detour finding' technique used...

We consider the problem of computing all pairs shortest paths (APSP) and for k sources in a weighted graph distributed CONGEST model. For graphs with non-negative integer edge weights (including zero weights) we build on recent pipelined algorithm to obtain $\tilde{O}(λ^{1/4}\cdot n^{5/4})$ edge-weight at most $λ$, $\tilde{O}(n \cdot \bigtriangleup^{1/3})$ rounds path distances $\bigtriangleup$. Additionally, simplify some procedures earlier APSP algorithms [HNS17,ARKP18]. also present...

Testing concurrent systems remains an uncomfortable problem for developers. The common industrial practice is to stress-test a system against large workloads, with the hope of triggering enough corner-case interleavings that reveal bugs. However, stress testing often inefficient and its ability get coverage unclear. In reaction, research community has proposed idea systematic testing, where tool takes over scheduling actions so it can perform algorithmic search space interleavings.We present...

Introduction: Oral submucous fibrosis (OSMF) is a potentially malignant disorder of oral mucosa affecting mainly population in South and Southeast Asia. condition results scars, the tissues, develops precancerous lesions some long-term individuals most frequently buccal mucosa. This study aimed to determine effectiveness colchicine management OSMF along with examination clinical conditions such as burning sensation, mucosal flexibility, interincisal distance, protrusion tongue. Materials...

We present a new pipelined approach to compute all pairs shortest paths (APSP) in directed graph with nonnegative integer edge weights (including zero weights) the CONGEST model distributed setting. Our deterministic algorithm computes of distance at most $Δ$ for vertices $2 n \sqrtΔ + 2n$ rounds, and more generally, it h-hop k sources $2\sqrt{nkh} k$ rounds. The is simple, has some novel features nontrivial analysis.It uses only edges communication. This can be used as base within...

The problem of finding multiple simple shortest paths in a weighted directed graph $G=(V,E)$ has many applications, and is considerably more difficult than the corresponding when cycles are allowed paths. Even for single source-sink pair, it known that two cannot be found time polynomially smaller $n^3$ (where $n=|V|$) unless All-Pairs Shortest Paths can solved similar bound. latter well-known open algorithm design. We consider all-pairs version problem, we give new to find $k$ all pairs...

In their quest for exascale and beyond, High-Performance Computing (HPC) systems continue becoming ever larger more complex. Application developers, on the other hand, leverage novel methods to improve efficiency of own codes: a recent trend is use floating-point mixed precision, or careful interlocking single- double-precision arithmetic, as tool performance well reduce network memory boundedness. However, while it known that modern HPC suffer hardware faults at daily rates, impact reduced...

Spatial safety violations are the root cause of many security attacks and unexpected behavior applications. Existing techniques to enforce spatial work broadly at either object or pointer granularity. Object-based approaches tend incur high CPU overheads, whereas pointer-based both memory overheads. SGXBounds, an object-based approach, provides precise out-of-bounds protection for objects a lower overhead compared other tools with similar precision. However, major drawback this approach is...

The memristance of a memristor depends on the amount charge flowing through it and when current stops it, remembers state. Thus, memristors are extremely suited for implementation memory units. Memristors find great application in neuromorphic circuits as is possible to couple processing, compared traditional Von-Neumann digital architectures where processing separate. Neural networks have layered structure information passes from one layer another each these layers possibility high degree...

Given a graph, [Formula: see text], configuration of text] represents that there is robot at vertex and obstacles some other vertices. The remaining vertices not having the or an obstacle are said to be empty. can moved from its place adjacent if it We give two definitions reachability show they equivalent in case undirected graphs. time algorithm for computing minimum value text]-reachability However, we notions different directed present linear trees.