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LF Fortran 95 Pro

LF Fortran 95 Pro
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Fortran language systems with Fujitsu's compiler expertise and high-performance code generator to deliver the most-productive, best-supported Fortran 95 language system for the PC. Whether you write new Fortran programs or downsize existing applications, you need speed, dependability, and great tech support. You need Lahey/Fujitsu Fortran 95!

동일계열 제품

LF Fortran 95 Performance.

LF Fortran 95 7.2 offers improved execution performance on most Fortran 77 and 90 codes. The new optimizations help performance on Pentium(R) 4 and Xeon(TM) chips. "We tested v7.2 Win32 optimizations on a 2.4GHz P4 with 512 MB of PC2100 RAM, running Windows XP, using Polyhedron’s (www.polyhedron.com) Fortran benchmarks. Specifying the new switches -tp4, -sse2, -zfm, -o2, and -inline the 90 benchmarks ran an average of 15.4% faster and the 77 benchmarks 4.4% faster than they did when built with LF Fortran v7.0."?

LF Fortran 95 Optimizations.

Basic Optimization

Constant folding
Common subexpression elimination
Copy propagation
Strength Reduction
Algebraic simplifications
Dead code elimination
Peephole optimization
Loop invariant code motion
Transform array element to simple variable
Local Instruction scheduling
Address calculation optimization
Array optimization

Program Reconstruction Optimizations

Loop unrolling
Loop interchange

Procedure Optimization

Inlining mathematical functions
Stack optimization
Inline user-defined

Others

Pentium/Pentium PRO/Pentium 4 instruction
Using fast input/output libraries
Prefetch Pentium III / Athlon
SSE2 instruction optimizations
Enable flush-to-zero mode for SSE2

Statically Link Fujitsu C and Borland C++ Object Files.

LF Fortran 95 supports static linking with Fujitsu C and Borland C++ Object Files. Combine your Fortran and C/C++ code into one executable. For the routines you don't want to develop yourself, you can also link with C/C++ routines from commercially available libraries.?

DLL Interfaces to Visual Basic, VC++, Borland C++, Delphi, Microsoft .NET languages.

Create 32-bit Windows DLLs from your Fortran routines and call the Fortran routines from 32-bit Windows programs created with Microsoft Visual Basic, Microsoft Visual C++, Borland C++, Borland Delphi, and Microsoft .NET languages.?

Win32 API Access.

LF Fortran 95 supports direct calls from Fortran to functions in the Win32 API. For a narrow range of applications, this might be the last little bit of glue you need to pull off your project. Note that this is not for the faint-hearted! You'll need to be a Windows programmer to get all but the most basic functionality. That's because the API was written to be called from C. And consequently, arguments need to be passed as C expects them. Structures and callback routines pose additional problems. Clearly, this would be a difficult way to build a Windows application from scratch.

Legacy Fortran Support.

LF Fortran 95 extends its language support in other directions adding many legacy Fortran features, including VAX structures and the various UNIX service routines. These features further facilitate your move to cost/performance efficiency on the PC platform:

Unlimited number of continuation lines in free or fixed source form?
DO UNTIL statement?
FIND statement?
STRUCTURE and END STRUCTURE statements?
UNION and END UNION statements?
MAP and END MAP statements?
RECORD statement?
Non-standard POINTER statement?
AUTOMATIC statement?
STATIC statement?
VALUE statement?
BYTE statement?
Hollerith constants?
Alternative forms of binary, octal, and hexadecimal constants?
Binary, octal, or hexadecimal constants in a DATA, declaration statement?
Period structure component separator?
IMPLICIT UNDEFINED statement?
Namelist input/output on internal file?
FORM = 'BINARY'?
TOTALREC specifier?
STATUS = 'SHR'?
Gw, $, \, and R edit descriptors?
LOC intrinsic function?
The following service subroutines: ABORT, BEEP, BIC, BIS, CLOCK, CLOCKM, DATE, EXIT, ERRSAV, ERRSTR, ERRSET, ERRTRA, FDATE, FREE,GETARG, GETDAT, GETLOG, GETPARM, GETTIM, GMTIME, IBTOD, IDATE, IETOM, ITIME, IVALUE, LTIME, MTOIE, PERROR, PRNSET, QSORT, SETRCD, SETBIT, SIGNAL, SLEEP?
The following service functions: ACCESS, ALARM, BIT, CHDIR, CHMOD, CTIME, DRAND, DTIME, ETIME, FGETC, FPUTC, FSEEK, FSTAT, FTELL, GETC, GETCWD, GETFD, GETPID, HOSTNM, IARGC, IERRNO, INMAX, IOINIT, IRAND, JDATE, KILL, LNBLNK, LONG, LSTAT, MALLOC, NARGS, PUTC, RAN, RAND, RENAME, RINDEX, RTC, SECOND, SECNDS, SETDAT, SETTIM, SHORT, STAT, TIME, TIMEF, UNLINK?

ANSI/ISO-Compliant Fortran 95.

LF Fortran 95 is a complete implementation of the ANSI/ISO Fortran 95 standard. Fortran 95 offers some small but important improvements over Fortran 90, including the ability to create your own elemental procedures, default initialization for structure components, the NULL intrinsic for initializing pointers, the FORALL construct, and a standard CPU_TIME intrinsic procedure.?

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