ExaSCALE Computing Leadership Act of 2015

Summary:  Exascale Computing for Science, Competitiveness, Advanced Manufacturing, Leadership, and the Economy Act of 2015 or the ExaSCALE Computing Leadership Act of 2015  Renames the Department of Energy High-End Computing Revitalization Act of 2004 as the Exascale Computing for Science, Competitiveness, Advanced Manufacturing, Leadership, and the Economy Act of 2015. Defines &quot;exascale computing&quot; as computing through the use of a computing machine that performs near or above 10 to the 18th power floating point operations per second. Directs the Secretary of Energy (DOE) to:  conduct a research program to develop exascale computing machine architectures to promote DOE missions; establish national laboratory partnerships with industry partners and institutions of higher education (IHEs) for the research and development of exascale computing systems across all applicable DOE organizations; provide, on a competitive, merit-reviewed basis, access for researchers in U.S. industries, IHEs, National Laboratories, and other federal agencies to the exascale computing systems developed under this Act; select members for such partnerships through a competitive, peer-review process; and execute the program through an integration of application, computer science, and computer hardware architecture using those partnerships to ensure that exascale computing machine architectures are capable of solving DOE target applications and broader scientific problems. 

SECTION 1. SHORT TITLE.

    This Act may be cited as the ``Exascale Computing for Science, 
Competitiveness, Advanced Manufacturing, Leadership, and the Economy 
Act of 2015'' or the ``ExaSCALE Computing Leadership Act of 2015''.

SEC. 2. RENAMING OF ACT.

    (a) In General.--Section 1 of the Department of Energy High-End 
Computing Revitalization Act of 2004 (15 U.S.C. 5501 note; Public Law 
108-423) is amended by striking ``Department of Energy High-End 
Computing Revitalization Act of 2004'' and inserting ``Exascale 
Computing for Science, Competitiveness, Advanced Manufacturing, 
Leadership, and the Economy Act of 2015''.
    (b) Conforming Amendment.--Section 976(a)(1) of the Energy Policy 
Act of 2005 (42 U.S.C. 16316(1)) is amended by striking ``Department of 
Energy High-End Computing Revitalization Act of 2004'' and inserting 
``Exascale Computing for Science, Competitiveness, Advanced 
Manufacturing, Leadership, and the Economy Act of 2015''.

SEC. 3. DEFINITIONS.

    Section 2 of the Exascale Computing for Science, Competitiveness, 
Advanced Manufacturing, Leadership, and the Economy Act of 2015 (15 
U.S.C. 5541) is amended--
            (1) by redesignating paragraphs (2) through (5) as 
        paragraphs (3) through (6), respectively;
            (2) by striking paragraph (1) and inserting the following:
            ``(1) Department.--The term `Department' means the 
        Department of Energy.
            ``(2) Exascale computing.--The term `exascale computing' 
        means computing through the use of a computing machine that 
        performs near or above 10 to the 18th power floating point 
        operations per second.''; and
            (3) in paragraph (6) (as redesignated by paragraph (1)), by 
        striking ``, acting through the Director of the Office of 
        Science of the Department of Energy''.

SEC. 4. DEPARTMENT OF ENERGY HIGH-END COMPUTING RESEARCH AND 
              DEVELOPMENT PROGRAM.

    Section 3 of the Exascale Computing for Science, Competitiveness, 
Advanced Manufacturing, Leadership, and the Economy Act of 2015 (15 
U.S.C. 5542) is amended--
            (1) in subsection (a)(1), by striking ``program'' and 
        inserting ``coordinated program across the Department'';
            (2) in subsection (b)(2), by striking ``, which may'' and 
        all that follows through ``architectures''; and
            (3) by striking subsection (d) and inserting the following:
    ``(d) Exascale Computing Program.--
            ``(1) In general.--The Secretary shall conduct a research 
        program (referred to in this subsection as the `Program') to 
        develop 2 or more exascale computing machine architectures to 
        promote the missions of the Department.
            ``(2) Implementation.--
                    ``(A) In general.--In carrying out the Program, the 
                Secretary shall--
                            ``(i) establish 2 or more National 
                        Laboratory partnerships with industry partners 
                        and institutions of higher education for the 
                        research and development of 2 or more exascale 
                        computing systems across all applicable 
                        organizations of the Department; and
                            ``(ii) provide, as appropriate, on a 
                        competitive, merit-reviewed basis, access for 
                        researchers in industries in the United States, 
                        institutions of higher education, National 
                        Laboratories, and other Federal agencies to the 
                        exascale computing systems developed pursuant 
                        to clause (i).
                    ``(B) Selection of partners.--The Secretary shall 
                select members for the partnerships under subparagraph 
                (A) through a competitive, peer-review process.
            ``(3) Codesign and application development.--
                    ``(A) In general.--The Secretary shall carry out 
                the Program through an integration of application, 
                computer science, and computer hardware architecture 
                using the partnerships established pursuant to 
                paragraph (2) to ensure that, to the maximum extent 
                practicable, 2 or more exascale computing machine 
                architectures are capable of solving Department target 
                applications and broader scientific problems.
                    ``(B) Report.--The Secretary shall submit to 
                Congress a report on how the integration under 
                subparagraph (A) is furthering application science data 
                and computational workloads across application 
                interests, including national security, material 
                science, physical science, cyber security, biological 
                science, the Materials Genome and BRAIN Initiatives of 
                the President, advanced manufacturing, and the national 
                electric grid.
            ``(4) Project review.--
                    ``(A) In general.--The exascale architectures 
                systems developed pursuant to partnerships established 
                pursuant to paragraph (2) shall be reviewed through a 
                project review process.
                    ``(B) Report.--Not later than 90 days after the 
                date of enactment of this subsection, the Secretary 
                shall submit to Congress a report on--
                            ``(i) the results of the review conducted 
                        under subparagraph (A); and
                            ``(ii) the coordination and management of 
                        the Program to ensure an integrated research 
                        program across the Department.
            ``(5) Annual reports.--At the time of the budget submission 
        of the Department for each fiscal year, the Secretary, in 
        consultation with the members of the partnerships established 
        pursuant to paragraph (2), shall submit to Congress a report 
        that describes funding for the Program as a whole by functional 
        element of the Department and critical milestones.''.

SEC. 5. AUTHORIZATION OF APPROPRIATIONS.

    Section 4 of the Exascale Computing for Science, Competitiveness, 
Advanced Manufacturing, Leadership, and the Economy Act of 2015 (15 
U.S.C. 5543) is amended--
            (1) by striking ``this Act'' and inserting ``section 
        3(d)''; and
            (2) by striking paragraphs (1) through (3) and inserting 
        the following:
            ``(1) $272,000,000 for fiscal year 2016;
            ``(2) $340,000,000 for fiscal year 2017; and
            ``(3) $360,000,000 for fiscal year 2018.''.