Domain decomposition Sample Clauses

Domain decomposition. The typical application case of the simulation code will be blood flow through complex irregular and sparse artery geometries. Different domain decomposition approaches (quad-tree cubic subdivision, rectangular subdivision, graph-partitioning) have been analyzed in respect of their memory usage and load-balancing in such cases. The tight coupling between the Eulerian LBM and the Lagrangian particles and their technical implications has been taken into account here. Though it made a complete re-implementation of the LBM datastructures in form of sparse linearized arrays with neighborhood lists and the inverse location mapping (index to coordinate) necessary, graph-partitioning using METIS has been chosen. It takes only actual domain elements (LBM lattice nodes) into account and minimizes the size of subdomain interfaces with the fine granularity of actual LBM lattice nodes. Despite the increased complexity, memory footprint is minimized by not allocating memory for space outside the flow domain. METIS has been shown to produce excellent partitionings with minimal interface and good load- balance for related application cases (Axner et al, J. Comput. Phys. 227, 4895, 2008).
Sample 1
AutoNDA by SimpleDocs
Domain decomposition. A simulation setup workflow has been developed that takes a b/w bitmap (in PPM format) filename and the number of subdomains as input arguments for a single call of pasumo_MkCase. It creates a partitioning with METIS, identifies inner domain nodes and nodes shared between each pair of subdomains at their interface, as well as domain neighbors and neighbors of each lattice node list. Enumeration of fluid nodes is such that “inner” nodes (those that don't need to take part in communication) are contiguous in memory. Same applies to all interface nodes, at inner and outer interfaces separately, so that there communication can be achieved through send/receive of a contiguous chunk of memory without the need of serialization/deserialization later in the simulation.
Sample 1
Domain decomposition. The computation time of a SimpleX calculation is independent of the number of sources, it is therefore sufficient to have a domain decomposition that assigns every processor an approx- imately equal number of grid points. Dividing space into equal volumes and assigning each volume to a processor is not sufficient because the number of points in each volume may dif- fer dramatically due to the adaptive grid. We therefore use a domain decomposition based on the space-filling Xxxxxxx curve, which is also employed in other methods without a regular grid (Xxxxxxxx & Bertschinger 2005; Xxxxxxxx 2005, 2010). The Xxxxxxx curve is a fractal that com- pletely fills a cubic rectangular volume. A Xxxxxxx curve is uniquely defined by its order m and its dimensionality d, filling every cell of a d-dimensional cube of length 2m. The following properties of the Xxxxxxx curve are beneficial when using it for domain decomposition: • Locality: points that are close along the 1D Xxxxxxx curve are in general also close in 3D space. • Compactness: a set of cells defined by a continuous section of the Xxxxxxx curve has a small surface to volume ratio. • Self-similarity: the Xxxxxxx curve can be extended to arbitrarily large size. The first two properties minimise the number of communications between processors, while the third property ensures that we can use an arbitrarily large number of cells to determine the domain decomposition. The first step in the domain decomposition is dividing the domain into 2md equal, regular cells, where d is again the dimension and m the order of the Xxxxxxx curve. We then step through the cells along the Xxxxxxx curve, counting the number of grid points inside each cell until the number of grid points equals the total number of grid points divided by the number of processors. In this way, every processor approximately holds an equal number of grid points, thus dividing the work load evenly, while the necessary communications between processors are minimal due to the locality and compactness property of the Xxxxxxx curve.
Sample 1

Related to Domain decomposition

  • Board Composition Each Stockholder agrees to vote, or cause to be voted, all Shares owned by such Stockholder, or over which such Stockholder has voting control, from time to time and at all times, in whatever manner as shall be necessary to ensure that at each annual or special meeting of stockholders at which an election of directors is held or pursuant to any written consent of the stockholders, the following persons shall be elected to the Board:

  • Committee Composition The Redeployment Committee shall be comprised of equal numbers of representatives of the Hospital and of the Union. The number of representatives will be determined locally. Where for the purposes of HTAP (the Ontario Hospital Training and Adjustment Panel) there is another hospital-wide staffing and redeployment committee created or in existence, Union members of the Redeployment Committee shall serve on any such hospital-wide staffing committee established with the same or similar terms of reference, and the number of Union members on such committee will be proportionate to the number of its bargaining unit members at the particular Hospital in relation to other staff groups. Meetings of the Redeployment Committee shall be held during normal working hours. Time spent attending such meetings shall be deemed to be work time for which the representative(s) shall be paid by the Hospital at his or her regular or premium rate as may be applicable. Each party shall appoint a co-chair for the Redeployment Committee. Co-chairs shall chair alternative meetings of the Committee and will be jointly responsible for establishing the agenda of the Committee meetings, preparing minutes and writing such correspondence as the Committee may direct.

  • Composition of the Board At and following the Closing, each of the Partners and the Sponsor, severally and not jointly, agrees to take, for so long as such Party holds of record or beneficially owns any Registrable Securities, all Necessary Action to cause the Board to be comprised of eleven (11) directors nominated in accordance with this Article II, initially consisting of (i) seven (7) of whom have been nominated by the Partners, and thereafter designated pursuant to Section 2.1(b) or Section 2.1(d) of this Investor Rights Agreement (each, a “Partner Director”), at least four (4) of whom shall satisfy all applicable independence requirements (including at least two (2) of whom shall be sufficiently independent to serve on the audit and compensation committees of the Board), (ii) three (3) of whom have been nominated by the Sponsor, and thereafter designated pursuant to Section 2.1(c) or Section 2.1(d) of this Investor Rights Agreement (each, a “Sponsor Director”), at least one (1) of whom shall satisfy all applicable independence requirements (including being sufficiently independent to serve on the audit committee of the Board as a chair and the compensation committee as a member), and (iii) one (1) of whom has been jointly nominated by the mutual agreement of Sponsor and the Partners (the “Joint Director”), which Joint Director shall satisfy all applicable independence requirements. At and following the Closing, each of the Sponsor and the Partners, severally and not jointly, agrees to take, for so long as such Party holds of record or beneficially owns any Registrable Securities, all Necessary Action to cause the foregoing directors to be divided into three (3) classes of directors, with each class serving for staggered three (3) year terms. The initial term of the Class I directors shall expire immediately following PubCo’s 2022 annual meeting of stockholders at which directors are elected. The initial term of the Class II directors shall expire immediately following PubCo’s 2023 annual meeting of stockholders at which directors are elected. The initial term of the Class III directors shall expire immediately following PubCo’s 2024 annual meeting at which directors are elected.

  • Composition If the Contractor is comprised of more than one legal entity, each such entity shall be jointly and severally liable hereunder.

  • Third Party Components The Products and Services may contain third party components (including open source software) subject to separate license agreements. To the limited extent a third party license expressly supersedes this XXXX, such third party license governs Customer’s use of that third party component.

  • Composition of Committee A Union/Management Committee shall be established for each Employer covered by this Agreement. The Employer and the Union shall each appoint a minimum of two (2) and a maximum of four (4) representatives to the Union/Management Committee. Where there are fewer than four (4) nurses employed at a worksite, then the number of Union and management representatives may be limited to one each with an alternate.

  • Composition of Board ‌ Should the Committee on Labour Relations, the Union Committee, and the senior official of the Union fail to settle any difference, grievance, or dispute whatsoever arising between the Employer and the Union, or the employees concerned, such difference, grievance or dispute, including any question as to whether any matter is arbitrable, but excluding re-negotiation of the Agreement shall, at the instance of either party, be referred to the arbitration, determination and award of a single arbitrator. Notwithstanding this, either party may choose to refer a matter to an Arbitration Board of three (3) members. Such arbitrator or Board shall be deemed to be a Board of Arbitration within the meaning of the Labour Relations Code of British Columbia. Where a matter is referred to an Arbitration Board of three (3) members, one (1) member is to be appointed by the Committee on Labour Relations, one (1) by the Union, and the third (3rd), who shall be the Chairperson of the Arbitration Board, by the two (2) thus appointed or, failing such appointment within two (2) weeks after either party has given notice to the other requiring that such appointment be made, the Chairperson of the Arbitration Board shall be appointed under the provisions of Article 11. The following arbitrators are appointed under the collective agreement. Xxxx Xxxxx Xxxx Xxxxxx Xxxx Xxxxxx Xxxxx XxXxxxxxxx

  • Composition of the Committee The Committee will comprise: - one (1) retiree appointed by OPSEU CAAT Academic - one (1) retiree appointed by OPSEU CAAT Support - one (1) retiree appointed by the Ontario Colleges Administrative Staff Association (OCASA) - three (3) management representatives appointed by the Council - one (1) resource person appointed by OPSEU - one (1) resource person appointed by OCASA - one (1) resource person appointed by the Council Additionally, when necessary, representatives of insurance carriers shall attend meetings to provide information but shall not act as resource persons for any of the parties.

  • Failure to Supply Workmen or Materials or to Prosecute the Work A Notice of Non-Compliant Work may be issued for failure of the Contractor to supply enough workers or enough materials or proper materials to prosecute the Work. A Notice of Non-Compliant Work in such event may be based on Article 3.3.2 (Competent Management of Time), and upon the definition of Work as set forth under Paragraph 1.1.9.58.

  • OPEN SOURCE COMPONENTS The DS Offerings may include open source components. Whenever notices (such as acknowledgment, copies of licenses or attribution notice) are required by the original licensor, such notices are included in the Documentation of the DS Offerings. Moreover, some open source components may not be distributed and licensed under the terms of the Agreement but under the terms of their original licenses as set forth in the Documentation of the DS Offerings themselves. Source code for open source software components is available upon request. Except for components mentioned in the section EXCLUSIONS below, the warranty and indemnification provided by DS under the Agreement apply to all open source software components and shall be provided by DS and not by the original licensor, but only for the use of the DS Offerings that is in compliance with the terms of the Agreement, and in conjunction with the DS Offerings. The original licensors of said open source software components provide them on an “as is” basis and without any liability whatsoever to Customer.

Time is Money Join Law Insider Premium to draft better contracts faster.