DIGITAL Fortran 90
User Manual for
DIGITAL UNIX Systems


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M
-m option (cpp)
Machine-code output listing
    general description
-machine_code option
Magnetic tape I/O
    library routines for #1
    library routines for #2
Main program
    C language
        f90 option for #1
        f90 option for #2
    statements for
make
    options related to
Makefile, example of using
malloc library routine
man command
    f90(1)
    viewing routine reference pages
Manual optimization
    balancing the workload
    interchanging loops
MASTER directive #1
MASTER directive #2
MASTER directive #3
-math_library accurate option
    effect of -fast option
-math_library fast option
    effect on -fpen option
MATMUL intrinsic procedure
    selecting version used
Matrix multiplication
    selecting MATMUL intrinsic code to use
MAXREC specifier
    See also LRM
Memory
    allocating and freeing virtual (library routine)
    for intermediate storage
Message catalog
    location of
    transporting
Messages
    driver-related errors
    issued by compiler
        general description
        limiting the number
    language dialects and standards checking
    linking #1
    linking #2
    run-time format
    run-time messages
        displaying online explanations
        list, numeric order
        parallel processing
        transporting message file
    See also Warning messages
    severity
        meaning to run-time system
Mixed real/complex operation
-module option
MODULE statement #1
MODULE statement #2
MODULE statement #3
    See also LRM
Module variables
    accessing in Ladebug
Modules
    compiler use of process descriptor limit
    declaration example
    example compilation
    file name suffix
    files created and used by compiler #1
    files created and used by compiler #2
    .mod file suffix
    See also LRM
    subprograms
    to contained subprograms
    use association
more command
    use with online release notes
-mp option #1
-mp option #2
-mp option #3
mpc_destroy library routine
mpc_in_parallel_region library routine
mpc_maxnumthreads library routine
mpc_my_threadnum library routine
mpc_numthreads library routine
MP_CHUNK_SIZE environment variable
MP_SCHEDTYPE directive #1
MP_SCHEDTYPE directive #2
MP_SCHEDTYPE directive #3
MP_SCHEDTYPE option
    for PARALLEL DO directive
    for PDO directive #1
    for PDO directive #2
    for PDO directive #3
MP_SPIN_COUNT environment variable
MP_STACK_SIZE environment variable
MP_THREAD_COUNT environment variable
MP_YIELD_COUNT environment variable
Multiple thread locking routines
N
Name length, symbolic
    maximum
NAME specifier
    See also LRM
Named common blocks
    Privitizing #1
    Privitizing #2
Namelist I/O statements
    See also LRM
-names keyword options
NaN values (IEEE)
    representation in Alpha floating-point data
    See also ISNAN intrinsic
Natural boundaries (alignment)
    definition of
    See also Alignment
Natural storage order
.NE. operator
    See also LRM
-nearest_neighbor option
Nesting limits
    source code
Nesting of directives
NLSPATH environment variable
    use by RTL
nm command
    use in locating undefined symbols
NML specifier
    See also LRM
-noextend_source option
-nof77 option
-nofor_main option #1
-nofor_main option #2
-nofp_reorder option
    effect of -fast option
-noi4 option
-noinclude option #1
-noinclude option #2
-noinclude option #3
-noinclude option #4
-noinline option #1
-noinline option #2
Nonadvancing I/O
-non_shared option #1
-non_shared option #2
-nopad_source option
not function
.NOT. operator
    See LRM
NOWAIT clause
    for END DO directive
    for END SECTIONS
    for END SINGLE
NOWAIT option
    for END PDO directive #1
    for END PDO directive #2
    for END PDO directive #3
-nowarn option
-nowsf_main option
-no_archive option (ld)
    and creating shared libraries
-no_fp_reorder option
Numeric range
    See Data type
Numerical data
    output of
O
.o file suffix
-o option #1
-o option #2
    and creating shared libraries
    effect of -c option
-o output option
-o0 option
-o1 option
-o2 option
-o3 option
-o4 or -o option
-o5 option #1
-o5 option #2
Object file
    and cDEC$ directives
    contents #1
    contents #2
    directory used
    effect of -gn option on size
    effect of -on options on size
    effect of optimization level on size #1
    effect of optimization level on size #2
    effect of optimization level on size #3
    linker order of loading
    linking
    multiple input files and options
    naming #1
    naming #2
    nonshared optimizations
    obtaining information about
    options controlling size of
    passing directly to ld (example)
    prevent creation of
    recognized file name suffix
    renaming
    retaining #1
    retaining #2
    retaining #3
    used to create a shared library #1
    used to create a shared library #2
    used to create a shared library #3
Object library
    See Shared library; Archive library
odump command
-om option #1
-om option #2
-omp option #1
-omp option #2
-omp option #3
omp_destroy_lock library routine
OMP_DYNAMIC environment variable
omp_get_dynamic library routine
omp_get_max_threads library routine
omp_get_nested library routine
omp_get_num_procs library routine
omp_get_num_threads library routine
omp_get_thread_num library routine
omp_init_lock library routine
omp_in_parallel library routine
OMP_NESTED environment variable
OMP_NUM_THREADS environment variable #1
OMP_NUM_THREADS environment variable #2
OMP_SCHEDULE environment variable
omp_set_dynamic library routine
omp_set_lock library routine
omp_set_nested library routine
omp_set_num_threads library routine
omp_test_lock library routine
omp_unset_lock library routine
-on (optimization) options #1
-on (optimization) options #2
    additional global
    automatic inlining
    effect of -g options
    effect of -gen_feedback option
    global
    local
    loop transformation and software pipelining
-onetrip option
OPEN statement
    access mode
    ACCESS specifier #1
    ACCESS specifier #2
    ACTION specifier
    APPEND specifier
    ASSOCIATEVARIABLE specifier
    BLANK specifier
        effect of -vms option
    BLOCKSIZE specifier #1
    BLOCKSIZE specifier #2
    BUFFERCOUNT specifier #1
    BUFFERCOUNT specifier #2
    CARRIAGECONTROL specifier #1
    CARRIAGECONTROL specifier #2
        effect of -vms option
    CONVERT specifier
    CONVERT specifier (nonnative data) #1
    CONVERT specifier (nonnative data) #2
    DEFAULTFILE specifier #1
    DEFAULTFILE specifier #2
    DEFAULTFILE specifier #3
    DEFAULTFILE specifier #4
    DEFAULTFILE specifier #5
    defaults
        converting nonnative data
        pathname used #1
        pathname used #2
        See also LRM
        units for preconnected files
    DELIM specifier
    directory and file name defaults
    DISPOSE specifier #1
    DISPOSE specifier #2
    effect of opening previously open file
    effect of -vms option
    environment variables
        effect of -vms option
    ERR specifier
        example
    example
    file organization
        importance of specifying
    FILE specifier #1
    FILE specifier #2
    FILE specifier #3
    FILE specifier #4
    FILE specifier #5
        example
    file status
    FORM specifier #1
    FORM specifier #2
    I/O statement interdependencies
    implied and explicit file open
    importance of examining defaults
    importance of specifying record type
    interdependencies of file and directory
    IOSTAT specifier
        example
    MAXREC specifier
    NAME specifier
    obtaining file descriptor (library routine)
    opening file with user-supplied function (USEROPEN)
    ORGANIZATION specifier #1
    ORGANIZATION specifier #2
    PAD specifier
        with fixed-length records
    POSITION specifier #1
    POSITION specifier #2
    READONLY specifier
    RECL specifier #1
    RECL specifier #2
        excluding overhead bytes
        obtaining value for unformatted files
        option to specify units
        performance considerations
        specifying for fixed-length records #1
        specifying for fixed-length records #2
        units
        units for unformatted files
    record length #1
    record length #2
    RECORDSIZE specifier
    RECORDTYPE specifier #1
    RECORDTYPE specifier #2
    See also LRM
    SHARED specifier #1
    SHARED specifier #2
    specifiers for efficient I/O #1
    specifiers for efficient I/O #2
    specifiers identifying
        error handling capabilities
        file access and position
        file and record characteristics
        file and unit
        file close action
        record transfer characteristics
    STATUS='SCRATCH' specifier
    STATUS specifier #1
    STATUS specifier #2
    summary of specifiers
    TYPE specifier
    UNIT specifier #1
    UNIT specifier #2
    UNIT specifier #3
    UNIT specifier #4
    USEROPEN specifier #1
    USEROPEN specifier #2
    using preconnected files
open system call
    example USEROPEN function (C)
    using to open file
OPENED specifier
    See also LRM
OpenMP
    conditional compilation
    conditional compilation prefixes
        fixed source form
        free source form
OpenMP parallel directives #1
OpenMP parallel directives #2
    ATOMIC #1
    ATOMIC #2
    ATOMIC #3
    BARRIER #1
    BARRIER #2
    BARRIER #3
    CRITICAL #1
    CRITICAL #2
    CRITICAL #3
    CRITICAL #4
    CRITICAL #5
    DO #1
    DO #2
    DO #3
    DO #4
    END CRITICAL #1
    END CRITICAL #2
    END DO #1
    END DO #2
    END DO #3
    END MASTER #1
    END MASTER #2
    END MASTER #3
    END ORDERED #1
    END ORDERED #2
    END ORDERED #3
    END PARALLEL #1
    END PARALLEL #2
    END PARALLEL #3
    END PARALLEL #4
    END PARALLEL DO #1
    END PARALLEL DO #2
    END PARALLEL SECTIONS #1
    END PARALLEL SECTIONS #2
    END SECTIONS #1
    END SECTIONS #2
    END SECTIONS #3
    END SINGLE #1
    END SINGLE #2
    FLUSH #1
    FLUSH #2
    FLUSH #3
    format
    MASTER #1
    MASTER #2
    MASTER #3
    ORDERED #1
    ORDERED #2
    ORDERED #3
    PARALLEL #1
    PARALLEL #2
    PARALLEL #3
    PARALLEL #4
    PARALLEL #5
    PARALLEL DO #1
    PARALLEL DO #2
    PARALLEL DO #3
    PARALLEL SECTIONS #1
    PARALLEL SECTIONS #2
    PARALLEL SECTIONS #3
    prefixes
        fixed source form
        free source form
    SECTION #1
    SECTION #2
    SECTION #3
    SECTIONS #1
    SECTIONS #2
    SECTIONS #3
    SINGLE #1
    SINGLE #2
    SINGLE #3
    summary descriptions
    THREADPRIVATE #1
    THREADPRIVATE #2
    THREADPRIVATE #3
    THREADPRIVATE #4
    THREADPRIVATE #5
OpenMP run-time library routines
    reference page listing
OpenVMS Fortran
    and DIGITAL Fortran 90 record types
    options for VAX compatibility (f90)
    porting code
    porting data
Operations
    mixed real/complex
Operators
    arithmetic
        for efficient run-time performance
    See also LRM
Optimization #1
Optimization #2
    additional global
    and performance measurement
    automatic inlining
    code hoisting
    code replication to eliminate branches
    common subexpression elimination
    compile-time operations
    constant pooling
    controlling procedure inlining
    data-flow and split lifetime analysis
    dead code
    dead store elimination (unused variables)
    effect on
        compilation time
        debugging
    floating-point calculations
    for parallel HPF programs
    for specific Alpha processor generation #1
    for specific Alpha processor generation #2
    global
    implied DO loop collapsing #1
    implied DO loop collapsing #2
    inline expansion
    inlining procedures #1
    inlining procedures #2
    instruction scheduling #1
    instruction scheduling #2
    instruction scheduling #3
    instruction scheduling #4
    interprocedure analysis
    level
        summary of options for controlling
    limiting loop unrolling #1
    limiting loop unrolling #2
    linker
    local
    loop blocking #1
    loop blocking #2
    loop distribution #1
    loop distribution #2
    loop fusion #1
    loop fusion #2
    loop interchange #1
    loop interchange #2
    loop outer loop unrolling #1
    loop outer loop unrolling #2
    loop scalar replacement #1
    loop scalar replacement #2
    loop transformation #1
    loop transformation #2
    loop transformation #3
    loop unrolling
    loops #1
    loops #2
    loops #3
    math library use
    mixed real/complex operations
    multiplication and division expansion
    of loops
    of multiple source files
        effect of -c option
    of statement functions and intrinsics
    options for
        summary
    overview of levels
    register use
    removal optimizations
    reordering floating-point operations
    setting options with -fast
    software pipelining #1
    software pipelining #2
    source code guidelines for (check list)
    speculative execution
    summary of levels
    summary of -o options
    to reduce program size (space optimizations) #1
    to reduce program size (space optimizations) #2
    -tune keyword
    -tune option
    using correct options with multiple input files #1
    using correct options with multiple input files #2
    using dummy aliases
    value propagation
OPTIONS statement #1
OPTIONS statement #2
OPTIONS statement #3
    See also LRM
    specifying unformatted file floating-point format
or function
Order of subscript progression
    in I/O
ORDERED clause
    for DO directive #1
    for DO directive #2
ORDERED directive #1
ORDERED directive #2
ORDERED directive #3
ORDERED option
    for PDO directive #1
    for PDO directive #2
ORGANIZATION specifier #1
ORGANIZATION specifier #2
    See also LRM
otsgetmaxthreads library routine
otsgetnumthreads library routine
otsgetthreadnum library routine
otsinitparallel library routine
otsinparallel library routine
otsstopworkers library routine
Output files
    changing output file names (f90)
    created by f90
    naming (f90)
Output listing #1
Output listing #2
    compilation-summary section
    machine-code section
    options for #1
    options for #2
    options for #3
Overhead
    record
Overriding implicit synchronization


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