Verification of GPGPU Programs Sample Clauses

Verification of GPGPU Programs. We now categorize the formal verification efforts attempted to date according to the verifi- cation technique adopted. The relevant techniques are: pairwise verification of threads and symbolic execution. For completeness, and because Task 6.4 of CARP is on the integration of static verification with dynamic instrumentation, we also discuss recent dynamic verification approaches. Pairwise Verification of Threads. Pairwise verification of threads has as its starting point the observation that any data race in a GPGPU program will be due to two threads accessing the same memory location without proper synchronization, where at least one of the threads performs a write. The observation was first made by Li and Gopalakrishnan and their co-workers [88]. As they report, considering threads in a pairwise fashion allows them to scale to programs that were beyond the capabilities of their previous bounded model checking approach [89] (see below). Pairwise verification has been adopted by Li and Xxxxxxxxxxxxxx [00, 94] and by Xxxxxxxx et al. [119], and is the basis of current work on GPU kernel verification by the CARP team at Imperial College London. Besides considering threads in a pairwise fashion, another crucial observation made by these approaches is that in the case of data races it suffices to consider program executions between barriers, which are the main means of synchronization in GPGPU programming. This considerably reduces the complexity the logical formulas that need to be checked, allowing for the verification of more complex programs. The work of Xxxxxxxx et al. [119] only considers data races and is limited to verifying absence of races only in programs where all loops have fixed bounds. They, however, claim to be working on an extension of their method which mitigates the loop bound limitation. The work of Li and Gopalakrishnan [88], implemented in their tool PUG, is more advanced and allows for verification of programs with unknown loop bounds, using techniques for automatic loop invariant inference. Their technique also allows loop invariants to be specified manually for cases where inference fails. The technique exploits the fact that CUDA kernels cannot exhibit recursion, and inlines all procedure calls. This means that discovery of procedure pre- and post-conditions is not necessary. Although the technique is necessarily incomplete, Li and Gopalakrishnan claim that the technique can be highly successful in the case of GPGPU programs, as most ...
AutoNDA by SimpleDocs

Related to Verification of GPGPU Programs

  • Electronic Visit Verification ("EVV A. To ensure: 1. the EVV system is used to verify the provision of services governed under 40 TAC, Chapter 68 or its successor; 2. only authorized people access the Contractor's EVV account; 3. all data elements required by HHSC or HHSC's designee are uploaded or entered and maintained in the EVV system completely, accurately, and prior to submitting the claim; 4. that each time services governed by 40 TAC Chapter 68 or its successor are delivered to an individual, the Contractor's staff uses an HHSC-approved EVV system; and 5. service delivery documentation is immediately available for review by HHSC when requested. B. Equipment provided to Contractor by HHSC, HHSC’s designee, or an HHSC-approved EVV vendor, must be returned in good condition when the equipment is no longer needed under this Contract. In the context of this agreement, “good condition” means Contractor must not place any marks or identifying information on the equipment and may not alter information on the equipment including logos and serial numbers. If the equipment is lost, stolen, marked, altered or damaged by Contractor, Contractor may be required to pay the replacement cost for each piece of equipment that is lost, stolen, marked or damaged. Replacement costs for lost, stolen, marked or damaged equipment may be assessed periodically. If Contractor recovers previously lost or stolen equipment for which Contractor paid the replacement cost in the prior 12 months, Contractor may return the equipment and be reimbursed for the replacement costs within 12 months of the date HHSC, HHSC’s designee or an HHSC-approved EVV vendor (as applicable) received payment in full from the Contractor. This is provided the equipment is returned in good condition as specified above. C. HHSC may perform EVV compliance oversight reviews to determine if Contractor has complied with EVV compliance requirements as outlined in 40 TAC Chapter 68 or its successor, EVV Policy posted on the HHSC EVV website or EVV Policy Handbook. D. If the Contractor determines an electronic record in the EVV system needs to be adjusted at any time, the Contractor will make the adjustment in the EVV system using the most appropriate EVV reason code number(s), EVV reason code description(s) and enter any required free text when completing visit maintenance in the EVV system, if applicable. E. Contractor must begin using an HHSC-approved EVV system prior to submitting an EVV relevant claim. F. All claims for services required to use EVV (EVV claims) must match to an accepted EVV visit transaction in the EVV Aggregator (the state’s centralized EVV database) prior to reimbursement of an EVV claim. Without a matching accepted EVV visit transaction, the claim will be denied. G. Contractor must submit all EVV related claims through the Texas Medicaid Claims Administrator, or as otherwise described in the EVV Policy posted on the HHSC EVV website or in the EVV Policy Handbook. H. Contractor must complete all required EVV training as outlined in the EVV Policy posted on the HHSC EVV website or EVV Policy Handbook: • Prior to using either an EVV vendor system or an EVV proprietary system and • Yearly thereafter. I. Contractor and, if applicable, the Contractor’s appointed EVV system administrator, must complete, sign and date the EVV Onboarding Form as outlined in 40 TAC Chapter 68 or its successor, EVV Policy posted on the HHSC website or EVV Policy Handbook.

  • MEASUREMENT AND VERIFICATION The goal of this task is to report the benefits resulting from this project by performing measurement and verification (M&V) of fossil fuel consumption and associated GHG reduction. • Enter into agreement with M&V subcontractor per Task 1.9 • Coordinate site visits with the M&V subcontractor at the demonstration site(s) • Develop M&V protocol for pre-installation measurements (and calculations): o Electric, natural gas and/or other fossil fuel consumption and GHG emissions (use appropriate emissions factor from Attachment 8 of the grant solicitation) of the equipment/process/system(s)/sub-system(s) that are to be upgraded and/or replaced and/or modified. o Ensure installation of sub-metering equipment and data loggers for pre/post data analysis. • Prepare and provide a detailed M&V Plan for each project demonstration site to include but not be limited to: o A description of the monitoring equipment and instrumentation which will be used. o A description of the key input parameters and output metrics which will be measured. o A description of the M&V protocol and analysis methods to be employed. o A description of the independent, third-party M&V services to be employed, if applicable. • Perform three months (or shorter period as approved in writing by the CAM) of pre- installation measurements (and calculations) based on the M&V protocol for pre- installation. • Prepare and provide a Pre-Installation M&V Findings Report for the demonstration site that includes M&V protocol, pre-install measurements (and calculations), analysis, and results performed in this task. • Develop M&V protocol for post-installation measurements (and calculations) of: o Electric, natural gas and/or other fossil fuel consumption and GHG emissions (use appropriate emissions factor from Attachment 8 of the grant solicitation) of the equipment/process/system(s)/sub-system(s) that will be upgraded and/or replaced and/or modified • Perform 12 months or two seasons, for seasonal facilities, (or shorter period as approved in writing by the CAM) of post-installation measurements based on M&V protocol for post-installation. • Provide a summary of post-installation M&V progress in Progress Report(s) (see subtask 1.5) which shall include but not be limited to:

  • Medical Verification The Town may require medical verification of an employee’s absence if the Town perceives the employee is abusing sick leave or has used an excessive amount of sick leave. The Town may require medical verification of an employee’s absence to verify that the employee is able to return to work with or without restrictions.

  • Sick Leave Reporting and Verification Employees must promptly notify their supervisor on their first day of sick leave and each day after, unless there is mutual agreement to do otherwise. If an employee is in a position where a relief replacement is necessary if they are absent, they will notify their supervisor at least two (2) hours prior to their scheduled time to report to work (excluding leave taken in accordance with the Domestic Violence Act). Unless otherwise precluded by law, the Employer has reason to suspect abuse, the Employer may require a written medical certificate for any sick leave absence. An employee returning to work after any sick leave absence may be required to provide written certification from their health care provider that the employee is able to return to work and perform the essential functions of the job with or without reasonable accommodation.

  • Employee Verification In accordance with Neb. Rev.

  • Sick Leave Verification Process a. The new school district shall provide the employee with the necessary verification form at the time the employee receives confirmation of employment in the school district. b. An employee must initiate the sick leave verification process and forward the necessary verification forms to the previous school district(s) within ninety (90) days of commencing employment with the new school district. c. The previous school district(s) shall make every reasonable effort to retrieve and verify the sick leave credits which the employee seeks to port.

  • Verification of Sick Leave The appointing officer or designee to whom application for sick leave is made may make such independent investigation as to the necessity for sick leave as is deemed proper and may require certification for any period of sick leave, provided that the employee has been previously notified in writing that such certification for absence of less than five working days shall be required. The Human Resources Director may at any time make such independent investigation as may be deemed proper regarding the illness of any person on sick leave.

  • Third Party Verification 4.8.1 The SPD shall be further required to provide entry to the site of the Power Project free of all encumbrances at all times during the Term of the Agreement to SECI and a third Party nominated by any Indian Governmental Instrumentality for inspection and verification of the works being carried out by the SPD at the site of the Power Project. 4.8.2 The third party may verify the construction works/operation of the Power Project being carried out by the SPD and if it is found that the construction works/operation of the Power Project is not as per the Prudent Utility Practices, it may seek clarifications from SPD or require the works to be stopped or to comply with the instructions of such third party.

  • Account Verification Whether or not a Default or Event of Default exists, Agent shall have the right at any time, in the name of Agent, any designee of Agent or any Borrower, to verify the validity, amount or any other matter relating to any Accounts of Borrowers by mail, telephone or otherwise. Borrowers shall cooperate fully with Agent in an effort to facilitate and promptly conclude any such verification process.

  • Application of Funding Techniques to Programs 6.3.1 The State shall apply the following funding techniques when requesting Federal funds for the component cash flows of the programs listed in sections 4.2 and 4.3 of this Agreement. 6.3.2 Programs Below are programs listed in Section 4.2 and Section 4.3.

Draft better contracts in just 5 minutes Get the weekly Law Insider newsletter packed with expert videos, webinars, ebooks, and more!