[Vortragsreihe: Professioneller IT-Betrieb] Vorträge am Do. 30.01.

Saverchenko, Ilya Ilya.Saverchenko at lrz.de
Fr Jan 24 18:21:44 CET 2014

Sehr geehrte Damen und Herren,

hiermit möchten wir Sie zu den folgenden Vorträgen am 30.01.2014 im Hörsaal des LRZ einladen:

Titel: The XSEDE Global Federated File System (GFFS) - Breaking Down Barriers to Secure Resource Sharing
Referent: Andrew Grimshaw
Beginn: 30.01.2014 15:15 Uhr
Dauer: 60 min
Inhalt: Lowering the barriers to collaboration and increasing access to high-end resources will accelerate the pace and productivity of science and engineering. Toward this end, the eXtreme Science and Engineering Discovery Environment (XSEDE) is a single virtual system that allows scientists to seamlessly and interactively share computing resources, data, and expertise. The XSEDE project will allow researches to link and access resources at both domestic and foreign supercomputing centers as well as resources belonging to university campuses and research labs around the world. 
The complexity of distributed systems creates obstacles for scientists who wish to share their resources with collaborators. Obstacles include: complex, unreliable, and unfamiliar tools and environments; multiple administrative domains each with their own passwords and file systems; the need to keep track of which resources are on which machines; the need to manually copy files and applications from place to place; the need to monitor and interact with multiple execution services, each with their own idiosyncratic behavior; and the need to manage authorization, identities and groups. The best way to manage complexity and make sharing data and resources possible on a large scale to provide users with a familiar, easy-to-use tool that manages aspects of the collaboration on the user’s behalf. 
The first principle of XSEDE’s approach to designing a collaborative interface is familiarity: give the user interaction paradigms and tools that are similar to those she already uses. XSEDE deploys what it calls the Global Federated File System (GFFS) in order to leverage the user’s familiarity with the directory-based paradigm. The GFFS is a global shared namespace designed so that the user can easily organize and interact with files, execution engines, identity services, running jobs, and much more. Many types of resources, such as compute clusters, directory trees in local file systems, and storage resources, can be linked into the GFFS directory structure by resource owners at centers, on campuses, and in individual research labs. GFFS resources can be accessed (subject to access control) in a variety of ways: from the command line (useful for scripting); via a GUI; or by being mapped directly into the local file system. When mapped into the local file system, remote resources can be accessed by existing applications as if they were local resources. 
In this talk I will present the GFFS, its functionality, its motivation, as well as typical use cases. I will demonstrate many of its capabilities, including: how to secure shared data with collaborators; how to share storage with collaborators; how to access data at the centers from campus and vice versa; how to create shared compute queues with collaborators who can then schedule jobs on collaboration “owned” resources; how to create jobs and how to interact with them once started. I will present the GFFS’s various access mechanisms, i.e., the GUI and local file system mapping; if facilities permit, I will include this latter mechanism in the live demonstration.


Titel: Globus Online: File transfer and sharing for Scientists
Referent: Matteo Lanati
Beginn: 30.01.2014 16:15 Uhr
Dauer: 45 min
Inhalt: Big Data: a buzzword of the recent years, with a particular focus on creation, handling, analysis and storage of huge amounts of information. The relevance of these datasets does not end at their place of creation, most likely, they are meant to be accessed, shared, synchronized, and moved between computers. The goal is very easy, it's all about making files available and accessible where, when and how the users need. Nonetheless, the task proved to be not so straightforward. Among many reasons, the most common encountered issues include configuration problems (both on server and client side), firewall and NAT traversal, last mile access limitations, network failures and the necessity to perform operations on the move or outside the usual working environment. 
Globus Online (GO) represents a mixed grid/cloud approach to all these possible hassles, especially targeted for scientific communities. This talk will give an overview of GO features and its structure, showing by means of a live demo its potential and capabilities.

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