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|
\documentclass{article}
\usepackage{axiom}
\begin{document}
\title{\$SPAD/src/interp fortcall.boot}
\author{The Axiom Team}
\maketitle
\begin{abstract}
\end{abstract}
\eject
\tableofcontents
\eject
\section{License}
<<license>>=
-- Copyright (c) 1991-2002, The Numerical ALgorithms Group Ltd.
-- All rights reserved.
--
-- Redistribution and use in source and binary forms, with or without
-- modification, are permitted provided that the following conditions are
-- met:
--
-- - Redistributions of source code must retain the above copyright
-- notice, this list of conditions and the following disclaimer.
--
-- - Redistributions in binary form must reproduce the above copyright
-- notice, this list of conditions and the following disclaimer in
-- the documentation and/or other materials provided with the
-- distribution.
--
-- - Neither the name of The Numerical ALgorithms Group Ltd. nor the
-- names of its contributors may be used to endorse or promote products
-- derived from this software without specific prior written permission.
--
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
-- IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
-- TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
-- PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
-- OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-- EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-- PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-- LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
@
<<*>>=
<<license>>
import '"sys-macros"
)package "BOOT"
makeVector(elts, t) ==
MAKE_-ARRAY(#elts, KEYWORD::ELEMENT_-TYPE, t or true,
KEYWORD::INITIAL_-CONTENTS, elts)
makeList(n, e) ==
MAKE_-LIST(n, KEYWORD::INITIAL_-ELEMENT, e)
makeFort(name,args,decls,results,returnType,aspInfo) ==
-- Create an executable Fortran file to call a given library function,
-- and a stub Axiom function to process its arguments.
-- the following is a list of objects for which values need not be
-- passed by the user.
dummies := [SECOND(u) for u in args | EQUAL(car u,0)]
args := [untangle2(u) for u in args] -- lose spad Union representation
where untangle2 u ==
atom (v := rest(u)) => v
first(v)
userArgs := [u for u in args | not member(u,dummies)] -- Temporary
decls := [untangle(u) for u in decls] -- lose spad Union representation
where untangle u ==
[if atom(rest(v)) then rest(v) else _
[if atom(w) then w else rest(w) for w in rest(v)] for v in u]
makeFort1(name,args,userArgs,dummies,decls,results,returnType,aspInfo)
makeFort1(name,args,userArgs,dummies,decls,results,returnType,aspInfo) ==
asps := [first(u) for u in aspInfo]
-- Now reorder the arguments so that all the scalars come first, so
-- that when we come to deal with arrays we know all the dimensions.
scalarArgs := [u for u in args | atom getFortranType(u,decls)]
arrayArgs := [u for u in args | not member(u,scalarArgs)]
orderedArgs := [:scalarArgs,:arrayArgs]
file := if $fortranDirectory then
STRCONC($fortranDirectory,"/",STRINGIMAGE name)
else
STRINGIMAGE name
makeFortranFun(name,orderedArgs,args,dummies,decls,results,file,
$fortranDirectory,returnType,asps)
makeSpadFun(name,userArgs,orderedArgs,dummies,decls,results,returnType,asps,
aspInfo,file)
name
makeFortranFun(name,args,fortranArgs,dummies,decls,results,file,dir,
returnType,asps) ==
-- Create a C file to call the library function, and compile it.
fp := MAKE_-OUTSTREAM(STRCONC(file,".c"))
writeCFile(name,args,fortranArgs,dummies,decls,results,returnType,asps,fp)
if null dir then dir := '"."
asps => SYSTEM STRCONC("cc -c ",file,".c ; mv ",file,".o ",dir)
SYSTEM STRCONC("cc ",file,".c -o ",file,".spadexe ",$fortranLibraries)
writeCFile(name,args,fortranArgs,dummies,decls,results,returnType,asps,fp) ==
WRITE_-LINE('"#include <stdio.h>",fp)
WRITE_-LINE('"#include <sys/select.h>",fp)
WRITE_-LINE('"#include <rpc/rpc.h>",fp)
WRITE_-LINE('"#ifndef NULL",fp)
WRITE_-LINE('"#define NULL 0",fp)
WRITE_-LINE('"#endif NULL",fp)
WRITE_-LINE('"#define MAX__ARRAY(x) (x ? x : 20000)",fp)
WRITE_-LINE('"#define CHECK(x) if (!x) {fprintf(stderr,_"xdr failed_"); exit(1);}",fp)
WRITE_-LINE('"void main()",fp)
WRITE_-LINE('"{",fp)
WRITE_-LINE('" XDR xdrs;",fp)
WRITE_-LINE('" {",fp)
if $addUnderscoreToFortranNames then
routineName := STRCONC(name,STRING CODE_-CHAR 95)
else
routineName := name
-- If it is a function then give it somewhere to stick its result:
if returnType then
returnName := INTERN STRCONC(name,"__result")
wl(['" ",getCType returnType,'" ",returnName,'",",routineName,'"();"],fp)
-- print out type declarations for the Fortran parameters, and build an
-- ordered list of pairs [<parameter> , <type>]
argList := nil
for a in args repeat
argList := [[a, getCType getFortranType(a,decls)], :argList]
printDec(SECOND first argList,a,asps,fp)
argList := nreverse argList;
-- read in the data
WRITE_-LINE('" xdrstdio__create(&xdrs, stdin, XDR__DECODE);",fp)
for a in argList repeat
if LISTP SECOND a then writeMalloc(first a,first SECOND a,rest SECOND a,fp)
not MEMQ(first a,[:dummies,:asps]) => writeXDR(a,'"&xdrs",fp)
-- now call the Library routine. FORTRAN names may have an underscore
-- appended.
if returnType then
wt(['" ",returnName,'"="],fp)
else
wt(['" "],fp)
wt([routineName,'"("],fp)
if first fortranArgs then
printCName(first fortranArgs,isPointer?(first fortranArgs,decls),asps,fp)
for a in rest fortranArgs repeat
PRINC('",",fp)
printCName(a,isPointer?(a,decls),asps,fp)
writeStringLengths(fortranArgs,decls,fp)
WRITE_-LINE('");",fp)
-- now export the results.
WRITE_-LINE('" xdrstdio__create(&xdrs, stdout, XDR__ENCODE);",fp)
if returnType then
writeXDR([returnName,getCType returnType],'"&xdrs",fp)
for r in results repeat
writeXDR([r,getCType getFortranType(r,decls)],'"&xdrs",fp)
WRITE_-LINE('" exit(0);",fp)
WRITE_-LINE('" }",fp)
WRITE_-LINE('"}",fp)
writeStringLengths(fortranArgs,decls,fp) ==
for a in fortranArgs repeat
if isString?(a,decls) then wt(['",&",a,'"__length"],fp)
isString?(u,decls) ==
EQUAL(ty := getFortranType(u,decls),"character") or
LISTP(ty) and EQUAL(first ty,"character")
isPointer?(u,decls) ==
ty := getFortranType(u,decls)
LISTP(ty) or ty in ["character","complex","double complex"]
printCName(u,ispointer,asps,fp) ==
member(u,asps) =>
PRINC(u,fp)
if $addUnderscoreToFortranNames then PRINC(STRING CODE_-CHAR 95,fp)
if not ispointer then PRINC('"&",fp)
PRINC(u,fp)
getFortranType(u,decls) ==
-- find u in decls, return the given (Fortran) type.
result := nil
for d in decls repeat for dec in rest d repeat
atom(dec) and dec=u =>
return( result := first d )
LISTP(dec) and first(dec)=u =>
return( result := [first d,:rest dec] )
result => result
error ['"Undeclared Fortran parameter: ",u]
getCType t ==
-- Return the equivalent C type.
LISTP(t) =>
--[if first(t)="character" then '"char" else getCType first t,:rest t]
first(t)="character" => ['"char",:rest t]
first(t)="complex" => ['"float",2,:rest t]
first(t)="double complex" => ['"double",2,:rest t]
[getCType first t,:rest t]
t="double" => '"double"
t="double precision" => '"double"
t="integer" => '"int"
t="real" => '"float"
t="logical" => '"int"
t="character" => ['"char",1]
t="complex" => ['"float",2] --'"Complex" -- we use our own typedef
t="double complex" => ['"double",2] --'"DComplex" -- we use our own typedef
error ['"Unrecognised Fortran type: ",t]
XDRFun t ==
LISTP(ty := SECOND t) =>
if first(ty)='"char" then '"wrapstring" else '"array"
ty
printDec(type,dec,asps,fp) ==
wt(['" ",if LISTP(type) then first(type) else type,'" "],fp)
member(dec,asps) =>
if $addUnderscoreToFortranNames then
wl([dec,STRING CODE_-CHAR 95,'"();"],fp)
else
wl([dec,'"();"],fp)
LISTP(type) =>
wl(['"*",dec,'" = NULL;"],fp)
wl(['" u__int ",dec, '"__length = 0;"],fp)
type = '"char" =>
wl(['"*",dec,'" = NULL;"],fp)
wl([dec, '";"],fp)
writeXDR(v,str,fp) ==
-- Generate the calls to the filters which will read from the temp
-- file. The CHECK macro ensures that the translation worked.
underscore := STRING CHAR('"__:",0) -- to avoid a compiler bug which won't
-- parse " ... __" properly.
wt(['" CHECK(xdr",underscore, XDRFun(v), '"(", str, '",&", first(v)],fp)
if (LISTP (ty :=SECOND v)) and not EQUAL(first ty,'"char") then
wt(['",&",first(v),'"__length,MAX__ARRAY(",first(v),'"__length),"],fp)
wt(['"sizeof(",first(ty),'"),xdr",underscore,first ty],fp)
wl(['"));"],fp)
prefix2Infix(l) ==
atom(l) => [l]
#l=2 => [first l,"(",:prefix2Infix SECOND l,")"]
#l=3 => ["(",:prefix2Infix SECOND l,first l,:prefix2Infix THIRD l,")"]
error '"Function in array dimensions with more than two arguments"
writeMalloc(name,type,dims,fp) ==
-- Write out a malloc for array arguments
-- Need the size as well
wl(['" ",name,'"__length=",prefix2Infix first dims,:[:["*",:prefix2Infix u]
for u in rest dims],'";"], fp)
type = '"char" =>
wl(['" ",name,'"=(",type," *)malloc((1+",name,
'"__length)*sizeof(",type,'"));"],fp)
wl(['" ",name,'"=(",type," *)malloc(",name,
'"__length*sizeof(",type,'"));"],fp)
wl (l,fp) ==
for u in l repeat PRINC(u,fp)
TERPRI(fp)
wt (l,fp) ==
for u in l repeat PRINC(u,fp)
-- spadRecordType(v,decs) ==
-- -- Build a lisp representation of the declaration of a spad record.
-- -- This will be the returned type of the spad function which calls the
-- -- Fortran code.
-- ["Record",:[spadRecordType1(u,decs) for u in v]]
--
-- spadRecordType1(u,decls) ==
-- -- Create a list of the form '( |:| u <spadTypeTTT u>)
-- [":",u,spadTypeTTT getFortranType(u,decls)]
spadTypeTTT u ==
-- Return the spad domain equivalent to the given Fortran type.
-- Changed by MCD 8/4/94 to reflect correct format for domains in
-- current system.
LISTP u =>
first(u)="character" => ["String"]
first(u)="logical" and #u=2 => ["List",["Boolean"]]
first(u)="logical" => ["List",["List",["Boolean"]]]
#u=2 => ["Matrix",spadTypeTTT first u]
#u=3 => ["Matrix",spadTypeTTT first u]
#u=4 => ["ThreeDimensionalMatrix",spadTypeTTT first u]
error '"Can only handle one-, two- and three-dimensional matrices"
u = "double" => ["DoubleFloat"]
u = "double precision" => ["DoubleFloat"]
u = "real" => ["DoubleFloat"]
u = "integer" => ["Integer"]
u = "logical" => ["Boolean"]
u = "character" => ["String"]
u = "complex" => ["Complex",["DoubleFloat"]]
u = "double complex" => ["Complex",["DoubleFloat"]]
error ['"Unrecognised Fortran type: ",u]
mkQuote l ==
[addQuote(u)for u in l] where
addQuote u ==
atom u => ['QUOTE,u]
["construct",:[addQuote(v) for v in u]]
makeLispList(l) ==
outputList := []
for u in l repeat
outputList := [:outputList, _
if atom(u) then ['QUOTE,u] else [["$elt","Lisp","construct"],_
:makeLispList(u)]]
outputList
makeSpadFun(name,userArgs,args,dummies,decls,results,returnType,asps,aspInfo,
file) ==
-- Create an interpreter function for the user to call.
fType := ["List", ["Record" , [":","key","Symbol"], [":","entry","Any"]]]
-- To make sure the spad interpreter isn't confused:
if returnType then
returnName := INTERN STRCONC(name,"Result")
decls := [[returnType,returnName], :decls]
results := [returnName, :results]
argNames := [INTERN STRCONC(STRINGIMAGE(u),'"__arg") for u in userArgs]
aType := [axiomType(a,decls,asps,aspInfo) for a in userArgs]
aspTypes := [SECOND NTH(POSITION(u,userArgs),aType) for u in asps]
nilLst := MAKE_-LIST(#args+1)
decPar := [["$elt","Lisp","construct"],:makeLispList decls]
fargNames := [INTERN STRCONC(STRINGIMAGE(u),'"__arg") for u in args |
not (MEMQ(u,dummies) or MEMQ(u,asps)) ]
for u in asps repeat
fargNames := delete(INTERN STRCONC(STRINGIMAGE(u),'"__arg"),fargNames)
resPar := ["construct",["@",["construct",:fargNames],_
["List",["Any"]]]]
call := [["$elt","Lisp","invokeFortran"],STRCONC(file,".spadexe"),_
[["$elt","Lisp","construct"],:mkQuote args],_
[["$elt","Lisp","construct"],:mkQuote union(asps,dummies)], decPar,_
[["$elt","Lisp","construct"],:mkQuote results],resPar]
if asps then
-- Make a unique(ish) id for asp files
aspId := STRCONC(getEnv('"SPADNUM"), GENTEMP('"NAG"))
body := ["SEQ",:makeAspGenerators(asps,aspTypes,aspId),_
makeCompilation(asps,file,aspId),_
["pretend",call,fType] ]
else
body := ["pretend",call,fType]
interpret ["DEF",[name,:argNames],["Result",:aType],nilLst,_
[["$elt","Result","construct"],body]]
stripNil u ==
[CAR(u), ["construct",:CADR(u)], if CADDR(u) then "true" else "false"]
makeUnion aspType ==
-- The argument is the type of the asp to be generated. We would like to
-- allow the user to be able to provide a fileName as an alternative
-- argument, so this builds the Union of aspType and FileName.
["Union",[":","fp",aspType],[":","fn","FileName"]]
axiomType(a,decls,asps,aspInfo) ==
a in asps =>
entry := first [u for u in aspInfo | first(u) = a]
ftc := ["$elt","FortranType","construct"]
rc := ["$elt", _
["Record",[":","key","Symbol"],[":","entry","FortranType"]], _
"construct"]
makeUnion ["FortranProgram",_
a,_
CADR(entry),_
["construct",:mkQuote CADDR entry], _
[ ["$elt", "SymbolTable","symbolTable"],_
["construct",_
:[[rc,first(v),[ftc,:stripNil rest(v)]] for v in CADDDR entry]]_
] ]
spadTypeTTT(getFortranType(a,decls))
makeAspGenerators(asps,types,aspId) ==
-- The code generated here will manipulate the Fortran output stack and write
-- the asps out as Fortran.
[:makeAspGenerators1(u,v,aspId) for u in asps for v in types]
makeAspGenerators1(asp,type,aspId) ==
[[["$elt","FOP","pushFortranOutputStack"] ,_
["filename",'"",STRCONC(STRINGIMAGE asp,aspId),'"f"]] , _
makeOutputAsFortran INTERN STRCONC(STRINGIMAGE(asp),'"__arg"), _
[["$elt","FOP","popFortranOutputStack"]] _
]
makeOutputAsFortran arg ==
["IF",["case",arg,"fn"],["outputAsFortran",[arg,"fn"]],_
["outputAsFortran",[arg,"fp"]] ]
makeCompilation(asps,file,aspId) ==
[["$elt","Lisp","compileAndLink"],_
["construct",:[STRCONC(STRINGIMAGE a,aspId,'".f") for a in asps]], _
$fortranCompilerName,_
STRCONC(file,'".o"),_
STRCONC(file,'".spadexe"),_
$fortranLibraries]
compileAndLink(fortFileList,fortCompiler,cFile,outFile,linkerArgs) ==
SYSTEM STRCONC (fortCompiler, addSpaces fortFileList,_
cFile, " -o ",outFile," ",linkerArgs)
addSpaces(stringList) ==
l := " "
for s in stringList repeat l := STRCONC(l,s," ")
l
complexRows z ==
-- Take a list of lists of complexes (i.e. pairs of floats) and
-- make them look like a Fortran vector!
[:[:pair2list(u.i) for u in z] for i in 0..#(z.0)-1]
pair2list u == [car u,cdr u]
vec2Lists1 u == [ELT(u,i) for i in 0..#u-1]
vec2Lists u == [vec2Lists1 ELT(u,i) for i in 0..#u-1]
spad2lisp(u) ==
-- Turn complexes into arrays of floats
first first(u)="Complex" =>
makeVector([makeVector([CADR u,CDDR u],'DOUBLE_-FLOAT)],NIL)
-- Turn arrays of complexes into arrays of floats so that tarnsposing
-- them puts them in the correct fortran order
first first(u)="Matrix" and first SECOND first(u) = "Complex" =>
makeVector([makeVector(complexRows vec2Lists rest u,'DOUBLE_-FLOAT)],NIL)
rest(u)
invokeFortran(objFile,args,dummies,decls,results,actual) ==
actual := [spad2lisp(u) for u in first actual]
returnedValues := spadify( _
fortCall(objFile,prepareData(args,dummies,actual,decls),_
prepareResults(results,args,dummies,actual,decls)),_
results,decls,inFirstNotSecond(args,dummies),actual)
-- -- If there are one or two elements in returnedValues we must return a
-- -- cons cell, otherwise a vector. This is to match the internal
-- -- representation of an Axiom Record.
-- #returnedValues = 1 => returnedValues
-- #returnedValues = 2 => CONS(first returnedValues,SECOND returnedValues)
-- makeVector(returnedValues,nil)
int2Bool u ==
-- Return something which looks like an axiom boolean
u=1 => "TRUE"
NIL
makeResultRecord(name,type,value) ==
-- Take an object returned by the NAG routine and make it into an AXIOM
-- object of type Record(key:Symbol,entry:Any) for use by Result.
CONS(name,CONS(spadTypeTTT type,value))
spadify(l,results,decls,names,actual) ==
-- The elements of list l are the output forms returned from the Fortran
-- code: integers, floats and vectors. Return spad forms of these, of
-- type Record(key:Symbol,entry:Any) (for use with the Result domain).
-- SETQ(RESULTS,l)
spadForms := nil
for i in 0..(#l -1) repeat
fort := NTH(i,l)
name := NTH(i,results)
ty := getFortranType(name,decls)
-- Result is a string
STRINGP fort =>
spadForms := [makeResultRecord(name,ty,fort), :spadForms]
-- Result is a Complex Scalar
ty in ["double complex" , "complex"] =>
spadForms := [makeResultRecord(name,ty, _
CONS(ELT(fort,0),ELT(fort,1)) ),:spadForms]
-- Result is a Complex vector or array
LISTP(ty) and first(ty) in ["double complex" , "complex"] =>
dims := [getVal(u,names,actual) for u in rest ty]
els := nil
if #dims=1 then
els := [makeVector([CONS(ELT(fort,2*i),ELT(fort,2*i+1)) _
for i in 0..(first(dims)-1)],nil)]
else if #dims=2 then
for r in 0..(first(dims) - 1) repeat
innerEls := nil
for c in 0..(SECOND(dims) - 1) repeat
offset := 2*(c*first(dims)+r)
innerEls := [CONS(ELT(fort,offset),ELT(fort,offset+1)),:innerEls]
els := [makeVector(NREVERSE innerEls,nil),:els]
else
error ['"Can't cope with complex output dimensions higher than 2"]
spadForms := [makeResultRecord(name,ty,makeVector(NREVERSE els,nil)),
:spadForms]
-- Result is a Boolean vector or array
LISTP(ty) and first(ty)="logical" and #ty=2 =>
dim := getVal(first rest ty,names,actual)
spadForms := [makeResultRecord(name,ty,_
[int2Bool ELT(fort,i) for i in 0..dim-1]), :spadForms]
LISTP(ty) and first(ty)="logical" =>
dims := [getVal(u,names,actual) for u in rest ty]
els := nil
if #dims=2 then
for r in 0..(first(dims) - 1) repeat
innerEls := nil
for c in 0..(SECOND(dims) - 1) repeat
innerEls := [int2Bool ELT(fort,c*first(dims)+r),:innerEls]
els := [NREVERSE innerEls,:els]
else
error ['"Can't cope with logical output dimensions higher than 2"]
spadForms := [makeResultRecord(name,ty,NREVERSE els), :spadForms]
-- Result is a vector or array
VECTORP fort =>
dims := [getVal(u,names,actual) for u in rest ty]
els := nil
-- Check to see whether we are dealing with a dummy (0-dimensional) array.
if MEMQ(0,dims) then
els := [[]]
else if #dims=1 then
els := [makeVector([ELT(fort,i) for i in 0..(first(dims)-1)],nil)]
else if #dims=2 then
for r in 0..(first(dims) - 1) repeat
innerEls := nil
for c in 0..(SECOND(dims) - 1) repeat
innerEls := [ELT(fort,c*first(dims)+r),:innerEls]
els := [makeVector(NREVERSE innerEls,nil),:els]
else if #dims=3 then
iDim := first(dims)
jDim := SECOND dims
kDim := THIRD dims
for r in 0..(iDim - 1) repeat
middleEls := nil
for c in 0..(jDim - 1) repeat
innerEls := nil
for p in 0..(kDim - 1) repeat
offset := p*jDim + c*kDim + r
innerEls := [ELT(fort,offset),:innerEls]
middleEls := [makeVector(NREVERSE innerEls,nil),:middleEls]
els := [makeVector(NREVERSE middleEls,nil),:els]
else
error ['"Can't cope with output dimensions higher than 3"]
if not MEMQ(0,dims) then els := makeVector(NREVERSE els,nil)
spadForms := [makeResultRecord(name,ty,els), :spadForms]
-- Result is a Boolean Scalar
atom fort and ty="logical" =>
spadForms := [makeResultRecord(name,ty,int2Bool fort), :spadForms]
-- Result is a Scalar
atom fort =>
spadForms := [makeResultRecord(name,ty,fort),:spadForms]
error ['"Unrecognised output format: ",fort]
NREVERSE spadForms
lispType u ==
-- Return the lisp type equivalent to the given Fortran type.
LISTP u => lispType first u
u = "real" => "SHORT-FLOAT"
u = "double" => "DOUBLE-FLOAT"
u = "double precision" => "DOUBLE-FLOAT"
u = "integer" => "FIXNUM"
u = "logical" => "BOOLEAN"
u = "character" => "CHARACTER"
u = "complex" => "SHORT-FLOAT"
u = "double complex" => "DOUBLE-FLOAT"
error ['"Unrecognised Fortran type: ",u]
getVal(u,names,values) ==
-- if u is the i'th element of names, return the i'th element of values,
-- otherwise if it is an arithmetic expression evaluate it.
NUMBERP(u) => u
LISTP(u) => eval [first(u), :[getVal(v,names,values) for v in rest u]]
(place := POSITION(u,names)) => NTH(place,values)
error ['"No value found for parameter: ",u]
prepareData(args,dummies,values,decls) ==
-- TTT: we don't
-- writeData handles all the mess
[args,dummies,values,decls]
checkForBoolean u ==
u = "BOOLEAN" => "FIXNUM"
u
shortZero == COERCE(0.0,'SHORT_-FLOAT)
longZero == COERCE(0.0,'DOUBLE_-FLOAT)
prepareResults(results,args,dummies,values,decls) ==
-- Create the floating point zeros (boot doesn't like 0.0d0, 0.0D0 etc)
data := nil
for u in results repeat
type := getFortranType(u,decls)
data := [defaultValue(type,inFirstNotSecond(args,dummies),values),:data]
where defaultValue(type,argNames,actual) ==
LISTP(type) and first(type)="character" => MAKE_-STRING(1)
LISTP(type) and first(type) in ["complex","double complex"] =>
makeVector( makeList(
2*APPLY('_*,[getVal(tt,argNames,actual) for tt in rest(type)]),_
if first(type)="complex" then shortZero else longZero),_
if first(type)="complex" then "SHORT-FLOAT" else "DOUBLE-FLOAT" )
LISTP type => makeVector(_
makeList(
APPLY('_*,[getVal(tt,argNames,actual) for tt in rest(type)]),_
defaultValue(first type,argNames,actual)),_
checkForBoolean lispType first(type) )
type = "integer" => 0
type = "real" => shortZero
type = "double" => longZero
type = "double precision" => longZero
type = "logical" => 0
type = "character" => MAKE_-STRING(1)
type = "complex" => makeVector([shortZero,shortZero],'SHORT_-FLOAT)
type = "double complex" => makeVector([longZero,longZero],'LONG_-FLOAT)
error ['"Unrecognised Fortran type: ",type]
NREVERSE data
-- TTT this is dead code now
-- transposeVector(u,type) ==
-- -- Take a vector of vectors and return a single vector which is in column
-- -- order (i.e. swap from C to Fortran order).
-- els := nil
-- rows := CAR ARRAY_-DIMENSIONS(u)-1
-- cols := CAR ARRAY_-DIMENSIONS(ELT(u,0))-1
-- -- Could be a 3D Matrix
-- if VECTORP ELT(ELT(u,0),0) then
-- planes := CAR ARRAY_-DIMENSIONS(ELT(ELT(u,0),0))-1
-- for k in 0..planes repeat for j in 0..cols repeat for i in 0..rows repeat
-- els := [ELT(ELT(ELT(u,i),j),k),:els]
-- else
-- for j in 0..cols repeat for i in 0..rows repeat
-- els := [ELT(ELT(u,i),j),:els]
-- makeVector(NREVERSE els,type)
writeData(tmpFile,indata) ==
-- Write the elements of the list data to a temporary file. Return the
-- name of that file.
--
str := MAKE_-OUTSTREAM(tmpFile)
xstr := xdrOpen(str,true)
[args,dummies,values,decls] := indata
for v in values repeat
-- the two Boolean values
v = "T" =>
xdrWrite(xstr,1)
NULL v =>
xdrWrite(xstr,0)
-- characters
STRINGP v =>
xdrWrite(xstr,v)
-- some array
VECTORP v =>
rows := CAR ARRAY_-DIMENSIONS(v)
-- is it 2d or more (most likely) ?
VECTORP ELT(v,0) =>
cols := CAR ARRAY_-DIMENSIONS(ELT(v,0))
-- is it 3d ?
VECTORP ELT(ELT(v,0),0) =>
planes := CAR ARRAY_-DIMENSIONS(ELT(ELT(v,0),0))
-- write 3d array
xdrWrite(xstr,rows*cols*planes)
for k in 0..planes-1 repeat
for j in 0..cols-1 repeat
for i in 0..rows-1 repeat
xdrWrite(xstr,ELT(ELT(ELT(v,i),j),k))
-- write 2d array
xdrWrite(xstr,rows*cols)
for j in 0..cols-1 repeat
for i in 0..rows-1 repeat xdrWrite(xstr,ELT(ELT(v,i),j))
-- write 1d array
xdrWrite(xstr,rows)
for i in 0..rows-1 repeat xdrWrite(xstr,ELT(v,i))
-- this is used for lists of booleans apparently in f01
LISTP v =>
xdrWrite(xstr,LENGTH v)
for el in v repeat
if el then xdrWrite(xstr,1) else xdrWrite(xstr,0)
-- integers
INTEGERP v =>
xdrWrite(xstr,v)
-- floats
FLOATP v =>
xdrWrite(xstr,v)
SHUT(str)
tmpFile
readData(tmpFile,results) ==
-- read in the results from tmpFile. The list results is a list of
-- dummy objects of the correct type which will receive the data.
str := MAKE_-INSTREAM(tmpFile)
xstr := xdrOpen(str,false)
results := [xdrRead1(xstr,r) for r in results] where
xdrRead1(x,dummy) ==
VECTORP(dummy) and ZEROP(LENGTH dummy) => dummy
xdrRead(x,dummy)
SHUT(str)
results
generateDataName()==STRCONC($fortranTmpDir,getEnv('"HOST"),
getEnv('"SPADNUM"), GENTEMP('"NAG"),'"data")
generateResultsName()==STRCONC($fortranTmpDir,getEnv('"HOST"),
getEnv('"SPADNUM"), GENTEMP('"NAG"),'"results")
fortCall(objFile,data,results) ==
tmpFile1 := writeData(generateDataName(),data)
tmpFile2 := generateResultsName()
SYSTEM STRCONC(objFile," < ",tmpFile1," > ",tmpFile2)
results := readData(tmpFile2,results)
-- SYSTEM STRCONC("rm -f ",tmpFile1," ",tmpFile2)
PROBE_-FILE(tmpFile1) and DELETE_-FILE(tmpFile1)
PROBE_-FILE(tmpFile2) and DELETE_-FILE(tmpFile2)
results
invokeNagman(objFiles,nfile,args,dummies,decls,results,actual) ==
actual := [spad2lisp(u) for u in first actual]
result := spadify(protectedNagCall(objFiles,nfile, _
prepareData(args,dummies,actual,decls),_
prepareResults(results,args,dummies,actual,decls)),_
results,decls,inFirstNotSecond(args,dummies),actual)
-- Tidy up asps
-- if objFiles then SYSTEM STRCONC("rm -f ",addSpaces objFiles)
for fn in objFiles repeat PROBE_-FILE(fn) and DELETE_-FILE(fn)
result
nagCall(objFiles,nfile,data,results,tmpFiled,tmpFiler) ==
nagMessagesString :=
$nagMessages => '"on"
'"off"
writeData(tmpFiled,data)
toSend:=STRCONC($nagHost," ",nfile," ",tmpFiler," ",tmpFiled," ",_
STRINGIMAGE($fortPersistence)," ", nagMessagesString," ",addSpaces objFiles)
sockSendString(8,toSend)
if sockGetInt(8)=1 then
results := readData(tmpFiler,results)
else
error ['"An error was detected while reading data: ", _
'"perhaps an incorrect array index was given ?"]
results
protectedNagCall(objFiles,nfile,data,results) ==
errors :=true
val:=NIL
td:=generateDataName()
tr:=generateResultsName()
UNWIND_-PROTECT( (val:=nagCall(objFiles,nfile,data,results,td,tr) ;errors :=NIL),
errors =>( resetStackLimits(); sendNagmanErrorSignal();cleanUpAfterNagman(td,tr,objFiles)))
val
cleanUpAfterNagman(f1,f2,listf)==
PROBE_-FILE(f1) and DELETE_-FILE(f1)
PROBE_-FILE(f2) and DELETE_-FILE(f2)
for fn in listf repeat PROBE_-FILE(fn) and DELETE_-FILE(fn)
sendNagmanErrorSignal()==
-- excite nagman's signal handler!
sockSendSignal(8,15)
-- Globals
-- $fortranDirectory := nil
-- $fortranLibraries := '"-L/usr/local/lib/f90 -lf90 -L/usr/local/lib -lnag -lm"
-- $fortranTmpDir := '"/tmp/"
-- $addUnderscoreToFortranNames := true
-- $fortranCompilerName := '"f90"
inFirstNotSecond(f,s)==
[i for i in f | not i in s]
-- Code for use in the Windows version of the AXIOM/NAG interface.
multiToUnivariate f ==
-- Take an AnonymousFunction, replace the bound variables by references to
-- elements of a vector, and compile it.
(first f) ^= "+->" => error "in multiToUnivariate: not an AnonymousFunction"
if PAIRP CADR f then
vars := CDADR f -- throw away 'Tuple at start of variable list
else
vars := [CADR f]
body := COPY_-TREE CADDR f
newVariable := GENSYM()
for index in 0..#vars-1 repeat
-- Remember that AXIOM lists, vectors etc are indexed from 1
body := NSUBST(["elt",newVariable,index+1],vars.(index),body)
-- We want a Vector DoubleFloat -> DoubleFloat
target := [["DoubleFloat"],["Vector",["DoubleFloat"]]]
rest interpret ["ADEF",[newVariable],target,[[],[]],body]
functionAndJacobian f ==
-- Take a mapping into n functions of n variables, produce code which will
-- evaluate function and jacobian values.
(first f) ^= "+->" => error "in functionAndJacobian: not an AnonymousFunction"
if PAIRP CADR f then
vars := CDADR f -- throw away 'Tuple at start of variable list
else
vars := [CADR f]
#(vars) ^= #(CDADDR f) =>
error "number of variables should equal number of functions"
funBodies := COPY_-TREE CDADDR f
jacBodies := [:[DF(f,v) for v in vars] for f in funBodies] where
DF(fn,var) ==
["@",["convert",["differentiate",fn,var]],"InputForm"]
jacBodies := CDDR interpret [["$elt",["List",["InputForm"]],"construct"],:jacBodies]
newVariable := GENSYM()
for index in 0..#vars-1 repeat
-- Remember that AXIOM lists, vectors etc are indexed from 1
funBodies := NSUBST(["elt",newVariable,index+1],vars.(index),funBodies)
jacBodies := NSUBST(["elt",newVariable,index+1],vars.(index),jacBodies)
target := [["Vector",["DoubleFloat"]],["Vector",["DoubleFloat"]],["Integer"]]
rest interpret
["ADEF",[newVariable,"flag"],target,[[],[],[]],_
["IF", ["=","flag",1],_
["vector",["construct",:funBodies]],_
["vector",["construct",:jacBodies]]]]
vectorOfFunctions f ==
-- Take a mapping into n functions of m variables, produce code which will
-- evaluate function values.
(first f) ^= "+->" => error "in vectorOfFunctions: not an AnonymousFunction"
if PAIRP CADR f then
vars := CDADR f -- throw away 'Tuple at start of variable list
else
vars := [CADR f]
funBodies := COPY_-TREE CDADDR f
newVariable := GENSYM()
for index in 0..#vars-1 repeat
-- Remember that AXIOM lists, vectors etc are indexed from 1
funBodies := NSUBST(["elt",newVariable,index+1],vars.(index),funBodies)
target := [["Vector",["DoubleFloat"]],["Vector",["DoubleFloat"]]]
rest interpret ["ADEF",[newVariable],target,[[],[]],["vector",["construct",:funBodies]]]
@
\eject
\begin{thebibliography}{99}
\bibitem{1} nothing
\end{thebibliography}
\end{document}
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