NASA/Langley Research Center, Mail Stop 144, Industry Assistance Office, Hampton, VA 23681-0001

A -- ROBUST AND EFFICIENT AUTOMATED ADJOINT GENERATION SOL 1-169-DFN.1155 DUE 040999 POC Gloria C Carney, Contract Specialist, Phone (757) 864-7151, Fax (757) 864-9774, Email g.c.carney@larc.nasa.gov -- Darlene Baxter, Contract Specialist, Phone (757)-864-2472, Fax (757) 864-7709, Email D.T.BAXTER@larc.nasa.gov WEB: Click here for the latest information about this notice, http://nais.nasa.gov/EPS/LaRC/date.html#1-169-DFN.1155. E-MAIL: Gloria C Carney, g.c.carney@larc.nasa.gov. NASA/LaRC plans to issue a Request for Quotation (RFQ) for tasks relating to improvements in the Automatic Differentiation in Fortran (ADIFOR) version 3.0 tool and its application to the government-owned computational fluid dynamics flow solver code. The contractor shall modify the ADIFOR 3.0 tool to: (1) reduce the Random Access Memory (RAM) requirement for automatically-generated adjoint code, (2) reduce the disk usage of automatically-generated adjoint code through the use of check-pointing scheme, (3) allow for user-supplied directives to automatically implement the Iterated Reverse Mode (IRM) technique described in AIAA 98-4807, (4) remove any additional limitation of the prototype adjoint-generation tool and (5) develop tutorial examples and documentation to be used in training new users of ADIFOR 3.0 tool. The contractor shall demonstrate the improvements listed above in a government-owned, government supplies version of the computational fluid dynamic flow solver code. This procurement is beingconducted under the Simplified Acquisition Procedures (SAP). NASA/LaRC intends to purchase the items from Rice University of Houston, Texas, unique experience and capability is available from only one source. This unique experience and capability was gained by the Alan Carle, Principal Investigator, in prior NASA sponsored Research Cooperative Agreements (NCC-1-212, NCC-1-234, NCC-1-236). Alan Carle had already demonstrated efficient prototype adjoint code generation and applications, therefore, there would be substantial duplication of costs for another person to learn these capabilities well enough to perform this task, and such costs are not expected to be recovered through competition. This concept is both unique and innovative and can provide services not otherwise available to the Government. The Government does not intend to acquire a commercial item using FAR Part 12. See Note 26. Interested firms have 15 days from the publication of this synopsis to submit in writing to the identified point of contact, their qualifications/capabilities. Such qualifications/capabilities will be used solely for the purpose of determining whether or not to conduct this procurement on a competitive basis. Responses received after the 15 days or without the required information will be considered nonresponsive to the synopsis and will not be considered. A determination by the Government to not compete this proposed effort on a full and open competitive basis, based upon responses to this notice is solely within the discretion of the Government. Oral communications are not acceptable in response to this notice. All responsible sources may submit an offer which shall be considered by the agency. An Ombudsman has been appointed. See Internet Note "B". Posted 03/26/99 (D-SN313400). (0085)

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