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Contents

 
• Introduction
  
  • Overview
    • Goals and Scope of High Performance Fortran
    • HPF Language Model
      • Data Mapping Directives
    • Overview of HPF 2.0 Language Features
      • HPF 2.0 Language Features
        • Data Distribution Features (Sections  and )
        • Data Parallel Execution Features (Section )
        • Extrinsic Program Units (Section )
        • Intrinsic Functions and Standard Library (Section )
      • HPF 2.0 Approved Extensions
        • Extensions for Data Mapping (Section )
        • Extensions for Data and Task Parallelism (Section )
        • Extensions for Asynchronous I/O (Section )
        • Extensions to Intrinsic and Library Procedures (Section )
        • Approved Extensions for HPF Extrinsics (Section )
    • Changes from HPF 1.1
      • Repartitioning of the Language
      • Features Now in Standard Fortran
      • Features Removed or Restricted in HPF 2.0
      • Features Moved to Approved Extensions
      • New Features of HPF 2.0
      • New Approved Extensions
      • Recognized Externally-Supported HPF Extrinsics
  • Notation and Syntax
    • Notation
    • Syntax of Directives
• High Performance Fortran Language
  
  • Data Mapping
    • Model
    • Syntax of Data Alignment and Distribution Directives
    • The DISTRIBUTE Directive
    • The ALIGN Directive
    • Allocatable Arrays and Pointers
    • The PROCESSORS Directive
    • The TEMPLATE Directive
    • Storage and Sequence Association
      • Storage Association
        • Definitions
        • Examples of Definitions
      • The SEQUENCE Directive
        • Storage Association Rules
        • Storage Association Discussion
  • Data Mapping in Subprogram Interfaces
    • Introduction
    • What Remapping Is Required and Who Does It
    • Distributions and Processor Arrangements
      • Examples
      • What Happens When a Clause Is Omitted
    • Alignment
      • The Template of the Dummy Argument
      • The INHERIT Directive
        • Examples
      • Descriptive ALIGN Directives
        • Example
    • Equivalence and Partial Order on the Set of Mappings
    • Conditions for Omitting Explicit Interfaces
    • Characteristics of Procedures
    • Argument Passing and Sequence Association
      • Sequence Association Rules
      • Discussion of Sequence Association
      • Examples of Sequence Association
  • INDEPENDENT and Related Directives
    • The INDEPENDENT Directive
      • Visualization of INDEPENDENT Directives
        • Examples of INDEPENDENT
      • NEW Variables
        • Examples of NEW
      • REDUCTION Variables and Statements
      • Semantics and Implementation of Reduction
    • Further Examples of INDEPENDENT Directives
  • Extrinsic Program Units
    • Overview
    • Declaration of Extrinsic Program Units
      • Function and Subroutine Statements
      • Program, Module, and Block Data Statements
      • The EXTRINSIC Prefix
    • Calling HPF Extrinsic Subprograms
      • Access to Types, Procedures, and Data
        • Types
        • Procedures
        • Data
      • The Effect of a Call
    • Examples of Extrinsic Procedures
  • Intrinsic and Library Procedures
    • Notation
    • System Inquiry Intrinsic Functions
    • Computational Intrinsic Functions
    • Library Procedures
      • Mapping Inquiry Subroutines
      • Bit Manipulation Functions
      • Array Reduction Functions
      • Array Combining Scatter Functions
      • Array Prefix and Suffix Functions
      • Array Sorting Functions
    • Generic Intrinsic and Library Procedures
      • System Inquiry Intrinsic Functions
      • Mapping Inquiry Subroutines
      • Bit Manipulation Functions
      • Array Reduction Functions
      • Array Combining Scatter Functions
      • Array Prefix and Suffix Functions
      • Array Sort Functions
    • Specifications of Intrinsic Procedures
      • ILEN(I)
      • NUMBER_OF_PROCESSORS(DIM)
      • PROCESSORS_SHAPE()
    • Specifications of Library Procedures
      • ALL_PREFIX(MASK, DIM, SEGMENT, EXCLUSIVE)
      • ALL_SCATTER(MASK,BASE,INDX1, ..., INDXn)
      • ALL_SUFFIX(MASK, DIM, SEGMENT, EXCLUSIVE)
      • ANY_PREFIX(MASK, DIM, SEGMENT, EXCLUSIVE)
      • ANY_SCATTER(MASK,BASE,INDX1, ..., INDXn)
      • ANY_SUFFIX(MASK, DIM, SEGMENT, EXCLUSIVE)
      • COPY_PREFIX(ARRAY, DIM, SEGMENT)
      • COPY_SCATTER(ARRAY,BASE,INDX1, ..., INDXn, MASK)
      • COPY_SUFFIX(ARRAY, DIM, SEGMENT)
      • COUNT_PREFIX(MASK, DIM, SEGMENT, EXCLUSIVE)
      • COUNT_SCATTER(MASK,BASE,INDX1, ..., INDXn)
      • COUNT_SUFFIX(MASK, DIM, SEGMENT, EXCLUSIVE)
      • GRADE_DOWN(ARRAY,DIM)
      • GRADE_UP(ARRAY,DIM)
      • HPF_ALIGNMENT(ALIGNEE, LB, UB, STRIDE, AXIS_MAP, IDENTITY_MAP, NCOPIES)
      • HPF_DISTRIBUTION(DISTRIBUTEE, AXIS_TYPE,
        AXIS_INFO, PROCESSORS_RANK, PROCESSORS_SHAPE)
      • HPF_TEMPLATE(ALIGNEE, TEMPLATE_RANK, LB, UB,
        AXIS_TYPE, AXIS_INFO, NUMBER_ALIGNED)
      • IALL(ARRAY, DIM, MASK)
      • IALL_PREFIX(ARRAY, DIM, MASK, SEGMENT, EXCLUSIVE)
      • IALL_SCATTER(ARRAY,BASE,INDX1, ..., INDXn, MASK)
      • IALL_SUFFIX(ARRAY, DIM, MASK, SEGMENT, EXCLUSIVE)
      • IANY(ARRAY, DIM, MASK)
      • IANY_PREFIX(ARRAY, DIM, MASK, SEGMENT, EXCLUSIVE)
      • IANY_SCATTER(ARRAY,BASE,INDX1, ..., INDXn, MASK)
      • IANY_SUFFIX(ARRAY, DIM, MASK, SEGMENT, EXCLUSIVE)
      • IPARITY(ARRAY, DIM, MASK)
      • IPARITY_PREFIX(ARRAY, DIM, MASK, SEGMENT, EXCLUSIVE)
      • IPARITY_SCATTER(ARRAY,BASE,INDX1, ..., INDXn, MASK)
      • IPARITY_SUFFIX(ARRAY, DIM, MASK, SEGMENT, EXCLUSIVE)
      • LEADZ(I)
      • MAXVAL_PREFIX(ARRAY, DIM, MASK, SEGMENT, EXCLUSIVE)
      • MAXVAL_SCATTER(ARRAY,BASE,INDX1, ..., INDXn, MASK)
      • MAXVAL_SUFFIX(ARRAY, DIM, MASK, SEGMENT, EXCLUSIVE)
      • MINVAL_PREFIX(ARRAY, DIM, MASK, SEGMENT, EXCLUSIVE)
      • MINVAL_SCATTER(ARRAY,BASE,INDX1, ..., INDXn, MASK)
      • MINVAL_SUFFIX(ARRAY, DIM, MASK, SEGMENT, EXCLUSIVE)
      • PARITY(MASK, DIM)
      • PARITY_PREFIX(MASK, DIM, SEGMENT, EXCLUSIVE)
      • PARITY_SCATTER(MASK,BASE,INDX1, ..., INDXn)
      • PARITY_SUFFIX(MASK, DIM, SEGMENT, EXCLUSIVE)
      • POPCNT(I)
      • POPPAR(I)
      • PRODUCT_PREFIX(ARRAY, DIM, MASK, SEGMENT, EXCLUSIVE)
      • PRODUCT_SCATTER(ARRAY,BASE,INDX1, ..., INDXn, MASK)
      • PRODUCT_SUFFIX(ARRAY, DIM, MASK, SEGMENT, EXCLUSIVE)
      • SORT_DOWN(ARRAY,DIM)
      • SORT_UP(ARRAY,DIM)
      • SUM_PREFIX(ARRAY, DIM, MASK, SEGMENT, EXCLUSIVE)
      • SUM_SCATTER(ARRAY,BASE,INDX1, ..., INDXn, MASK)
      • SUM_SUFFIX(ARRAY, DIM, MASK, SEGMENT, EXCLUSIVE)
• HPF Approved Extensions
  
  • Approved Extensions for Data Mapping
    • Extended Model
    • Syntax of Attributed Forms of Extended Data Mapping Directives
    • The REDISTRIBUTE Directive
    • The REALIGN Directive
    • The DYNAMIC Directive
    • Remapping and Subprogram Interfaces
    • Mapping to Processor Subsets
    • Pointers
      • Mapped Pointers
      • Pointers and Subprograms
      • Restrictions on Pointers and Targets
    • Mapping of Derived Type Components
    • New Distribution Formats
    • The RANGE Directive
    • The SHADOW Directive
    • Equivalence and Partial Order on the Set of Mappings
    • Conditions for Omitting Explicit Interfaces
    • Characteristics of Procedures
  • Approved Extensions for Data and Task Parallelism
    • Active Processor Sets
      • The SUBSET Directive
      • Mapping Local Objects and Dummy Arguments
      • Other Restrictions on Active Processors
    • The ON Directive
      • Syntax of the ON Directive
      • Semantics of the ON Directive
      • Examples of ON Directives
      • ON Directives Applied to Subprogram Invocations
    • The RESIDENT Clause, Directive, and Construct
      • Examples of RESIDENT Clauses
      • RESIDENT Directives Applied to Procedure Reference
    • The TASK_REGION Construct
      • Syntax of the TASK_REGION Construct
      • Semantics of the TASK_REGION Construct
      • Execution Model and Usage
      • Implementation
        • Localized computation and communication
        • Replicated computations
        • Implications for I/O
        • SPMD or MIMD code generation
      • Example: 2-D FFT
  • Approved Extension for Asynchronous I/O
    • The WAIT Statement
  • Approved Extensions for HPF Extrinsics
    • Alternative Extrinsic Models: LOCAL and SERIAL
      • The LOCAL Model
        • Conventions for Calling LOCAL Subprograms
        • LOCAL Calling Sequence
        • Information Available to the Local Procedure
      • The SERIAL Model
        • SERIAL Calling Sequence
    • Extrinsic Language Bindings
      • Control of Arguments
    • HPF Bindings
      • Additional Special Considerations for HPF_LOCAL
      • Argument Association
      • Special Considerations for HPF_SERIAL
    • C Language Bindings
      • Specification of Interfaces to Procedures Defined in C
      • Specification of Data Type Mappings for C
        • Examples of Data Type Mappings
    • Fortran Language Bindings
    • Fortran 77 Language Bindings
      • Special Considerations for F77_LOCAL
      • Argument Passing to F77_LOCAL Procedures
      • F77_LOCAL Programming Examples
        • LAYOUT("0DF77_ARRAY"0D) and PASS_BY("0D*"0D)
        • LAYOUT("0DHPF_ARRAY"0D) and PASS_BY("0DHPF_HANDLE"0D)
    • The Extrinsic Library
      • HPF Local Routine Library
        • Accessing Dummy Arguments by Blocks
        • GLOBAL_ALIGNMENT(ARRAY, ...)
        • GLOBAL_DISTRIBUTION(ARRAY, ...)
        • GLOBAL_TEMPLATE(ARRAY, ...)
        • GLOBAL_SHAPE(SOURCE)
        • GLOBAL_SIZE(ARRAY, DIM)
        • ABSTRACT_TO_PHYSICAL(ARRAY, INDEX, PROC)
        • PHYSICAL_TO_ABSTRACT(ARRAY, PROC, INDEX)
        • LOCAL_TO_GLOBAL(ARRAY, L_INDEX, G_INDEX)
        • GLOBAL_TO_LOCAL(ARRAY, G_INDEX, L_INDEX,
          LOCAL, NCOPIES, PROCS)
        • MY_PROCESSOR()
        • LOCAL_BLKCNT(ARRAY, DIM, PROC)
        • LOCAL_LINDEX(ARRAY, DIM, PROC)
        • LOCAL_UINDEX(ARRAY, DIM, PROC)
      • Library Access from Serial Extrinsics
  • Approved Extensions to the HPF Intrinsic and Library Procedures
    • Specifications of Extended Intrinsic Procedures
      • ACTIVE_NUM_PROCS(DIM)
      • ACTIVE_PROCS_SHAPE()
      • TRANSPOSE(ARRAY,ORDER)
    • Specifications of Extended Library Procedures
      • HPF_ALIGNMENT(ALIGNEE, LB, UB, STRIDE, AXIS_MAP, IDENTITY_MAP, DYNAMIC, NCOPIES)
      • HPF_DISTRIBUTION(DISTRIBUTEE, AXIS_TYPE,
        AXIS_INFO, PROCESSORS_RANK, PROCESSORS_SHAPE,
        PLB, PUB, PSTRIDE, LOW_SHADOW, HIGH_SHADOW)
      • HPF_TEMPLATE(ALIGNEE, TEMPLATE_RANK, LB, UB,
        AXIS_TYPE, AXIS_INFO, NUMBER_ALIGNED, DYNAMIC)
      • HPF_MAP_ARRAY(ARRAY, TEMPLATE_DIM, MAP_ARRAY)
      • HPF_NUMBER_MAPPED(ARRAY, PROCESSORS_DIM,
        NUMBER_MAPPED)
• Annexes
  
  • Syntax Rules
    • Notation and Syntax
      • Syntax of Directives
    • Data Mapping
      • Syntax of Data Alignment and Distribution Directives
      • The DISTRIBUTE Directive
      • The ALIGN Directive
      • The PROCESSORS Directive
      • The TEMPLATE Directive
      • Storage and Sequence Association
    • Data Mapping in Subprogram Interfaces
      • Alignment
    • INDEPENDENT and Related Directives
      • The INDEPENDENT Directive
    • Extrinsic Program Units
      • Declaration of Extrinsic Program Units
    • Approved Extensions for Data Mapping
      • Syntax of Attributed Forms of Extended Data Mapping Directives
      • The REDISTRIBUTE Directive
      • The REALIGN Directive
      • The DYNAMIC Directive
      • Mapping to Processor Subsets
      • Mapping of Derived Type Components
      • New Distribution Formats
      • The RANGE Directive
      • The SHADOW Directive
    • Approved Extensions for Data and Task Parallelism
      • Active Processor Sets
      • The ON Directive
      • The RESIDENT Clause, Directive, and Construct
      • The TASK_REGION Construct
    • Approved Extension for Asynchronous I/O
      • The WAIT Statement
    • Approved Extensions for HPF Extrinsics
      • Extrinsic Language Bindings
  • Syntax Cross-reference
    • Nonterminal Symbols That Are Defined
    • Nonterminal Symbols That Are Not Defined
    • Terminal Symbols
  • HPF 1.1 Subset
    • Fortran 90 Features in the HPF 1.1 Subset
    • HPF 1.1 Directives and Language Extensions in the HPF 1.1 Subset
  • Previous HPFF Acknowledgments
    • HPFF Acknowledgments
    • HPFF94 Acknowledgments
• References
  • Policy and Mechanism for Recognized Extrinsic Interfaces
    • Extrinsic Policy
    • Extrinsic Interface Mechanism
  • HPF_CRAFT
    • Introduction
    • Examples of Use
    • External Interface
    • Execution Model
    • HPF_CRAFT Functional Summary
      • Data Mapping Features
      • Subprogram Interfaces
      • The INDEPENDENT Directive
      • The ON Clause
      • Array Syntax
      • Treatment of FORALL and WHERE Statements
      • Synchronization Primitives
      • Barrier Removal
      • Serial Regions
      • Libraries
      • Parallel Inquiry Intrinsics
      • Task Identity
      • Parallelism Specification Directives
      • The SYMMETRIC Directive
      • The RESIDENT Directive
      • The ATOMIC UPDATE Directive
      • The GEOMETRY Directive
  • The FORTRAN 77 Local Library
    • Introduction
    • Summary
    • Global HPF Subgrid Inquiry Routine
      • Subgrid Inquiries Involving Embedding Arrays
    • Local FORTRAN 77 Inquiry Routines
    • Programming Example Using HPF_SUBGRID_INFO
      • HPF Caller
      • FORTRAN 77 Callee
    • Programming Example Using F77-Callable Inquiry Subroutines
      • HPF Caller
      • FORTRAN 77 Callee
• About this document ...