changelog

FFTW, a collection of fast C routines to compute the Discrete Fourier Transform in one or more dime

2003-03-18  Steven G. Johnson  <stevenj@ab-initio>

	* fftw/fftwf77.c, rfftw/rfftwf77.c, threads/fftw_f77_threads.c,
	threads/rfftw_f77_threads.c: whoops, missing Fortran wrappers,
	grr...thanks to Stuart Midgley

2003-03-16  Steven G. Johnson  <stevenj@ab-initio>

	* configure.in: 2.1.4

	* COPYRIGHT, cilk/executor_cilk.cilk, cilk/fftw_cilk.cilkh,
	cilk/fftwnd_cilk.cilk, cilk/test_cilk.cilk, cilk/time_cilk.cilk,
	fftw/config.h.in, fftw/executor.c, fftw/fftw-int.h,
	fftw/fftw.h.in, fftw/fftwf77.c, fftw/fftwnd.c, fftw/generic.c,
	fftw/malloc.c, fftw/planner.c, fftw/putils.c, fftw/rader.c,
	fftw/timer.c, fftw/twiddle.c, fftw/wisdom.c, fftw/wisdomio.c,
	fortran/f77_test.F, gensrc/asched.ml, gensrc/asched.mli,
	gensrc/complex.ml, gensrc/complex.mli, gensrc/dag.ml,
	gensrc/dag.mli, gensrc/expr.ml, gensrc/expr.mli,
	gensrc/exprdag.ml, gensrc/exprdag.mli, gensrc/fft.ml,
	gensrc/genfft.ml, gensrc/magic.ml, gensrc/number.ml,
	gensrc/number.mli, gensrc/schedule.ml, gensrc/schedule.mli,
	gensrc/symmetry.ml, gensrc/to_c.ml, gensrc/to_c.mli,
	gensrc/twiddle.ml, gensrc/util.ml, gensrc/util.mli,
	gensrc/variable.ml, gensrc/variable.mli, matlab/fftw.c,
	mpi/TOMS_transpose.c, mpi/TOMS_transpose.h, mpi/fftw_f77_mpi.c,
	mpi/fftw_f77_mpi.h, mpi/fftw_mpi.c, mpi/fftw_mpi.h,
	mpi/fftw_mpi_test.c, mpi/fftwnd_mpi.c, mpi/rfftw_f77_mpi.c,
	mpi/rfftw_mpi.h, mpi/rfftw_mpi_test.c, mpi/rfftwnd_mpi.c,
	mpi/sched.c, mpi/sched.h, mpi/test_sched.c,
	mpi/test_transpose_mpi.c, mpi/transpose_mpi.c, rfftw/rexec.c,
	rfftw/rexec2.c, rfftw/rfftw.h, rfftw/rfftwf77.c, rfftw/rfftwnd.c,
	rfftw/rgeneric.c, rfftw/rplanner.c, tests/fftw_test.c,
	tests/rfftw_test.c, tests/test_main.c, threads/executor_threads.c,
	threads/fftw_f77_threads.c, threads/fftw_threads-int.h,
	threads/fftw_threads.c, threads/fftw_threads.h,
	threads/fftw_threads_test.c, threads/fftwnd_threads.c,
	threads/rexec2_threads.c, threads/rexec_threads.c,
	threads/rfftw_f77_threads.c, threads/rfftw_threads.h,
	threads/rfftw_threads_test.c, threads/rfftwnd_threads.c: update
	copyright year

2003-03-15  Steven G. Johnson  <stevenj@ab-initio>

	* fftw/fftw.h.in: removed C99 complex stuff, since it breaks
	backwards compatibility

2003-03-08  Steven G. Johnson  <stevenj@ab-initio>

	* configure.in, acinclude.m4: warnings only in debug/maintainer
	mode

2003-01-15  Steven G. Johnson  <stevenj@ab-initio>

	* doc/fftw.texi: fixed typo (thanks to Andrew Young for the
	correction)

2003-01-13  Steven G. Johnson  <stevenj@ab-initio>

	* configure.in: added check if c/f77 linking works

2002-11-27  Steven G. Johnson  <stevenj@ab-initio>

	* FAQ/fftw-faq.bfnn: noted pgcc problems

2002-10-24  Steven G. Johnson  <stevenj@ab-initio>

	* Makefile.am, gensrc/Makefile.fftw.am: whoops

	* NEWS: slight fix

	* NEWS: more news

	* fftw/fftw.h.in: qualified compatibility claim

	* acx_mpi.m4: sync with MPB

	* ChangeLog: updated

	* NEWS, configure.in: use acx_mpi.m4

	* mpi/Makefile.am: whoops

	* acx_mpi.m4: added

	* FAQ/fftw-faq.bfnn: more FAQs

	* acinclude.m4, configure.in, fftw/config.h.in, fftw/f77_func.h,
	fftw/fftwf77.c, mpi/fftw_f77_mpi.h, rfftw/rfftwf77.c,
	threads/fftw_f77_threads.c, threads/rfftw_f77_threads.c: use
	autoconf's AC_F77_WRAPPERS instead of our own mangling code...the
	autoconf stuff is derived from ours, anyway

2002-10-24  Steven G. Johnson  <stevenj@ab-initio>

	* NEWS, configure.in: use acx_mpi.m4

	* mpi/Makefile.am: whoops

	* acx_mpi.m4: added

	* FAQ/fftw-faq.bfnn: more FAQs

	* acinclude.m4, configure.in, fftw/config.h.in, fftw/f77_func.h,
	fftw/fftwf77.c, mpi/fftw_f77_mpi.h, rfftw/rfftwf77.c,
	threads/fftw_f77_threads.c, threads/rfftw_f77_threads.c: use
	autoconf's AC_F77_WRAPPERS instead of our own mangling code...the
	autoconf stuff is derived from ours, anyway

	* configure.in: bumped version

	* gensrc/Makefile.fftw.am, gensrc/Makefile.rfftw.am: whoops

	* acinclude.m4, configure.in, gensrc/Makefile.fftw.am,
	gensrc/Makefile.rfftw.am, mpi/Makefile.am, tests/Makefile.am,
	threads/Makefile.am: eliminated SUBST_XXX hackery...it doesn't
	work with the latest autoconf, and doesn't seem to be needed any
	more either

	* FAQ/fftw-faq.bfnn: noted AIX problem

	* acx_pthread.m4: sync with fftw3

2002-07-12  Steven G. Johnson  <stevenj@ab-initio>

	* acx_pthread.m4: switch to C so that CFLAGS work

2002-04-18  Steven G. Johnson  <stevenj@ab-initio>

	* acx_pthread.m4: remove pthread.h test

	* acx_pthread.m4: synchronize formatting with AC archive

2001-11-06  FFTW Maintainers  <fftw@ab-initio>

	* threads/fftw_threads.c: fix thread parallelization on Solaris

2001-06-27  Steven G. Johnson  <stevenj@ab-initio>

	* ChangeLog: updated

2001-06-21  Steven G. Johnson  <[e-mail]>

	* configure.in: added IBM AIX mpi cc command

2001-04-21  fftw  <[e-mail]>

	* doc/fftw.texi: removed extraneous @end

	* acinclude.m4: fixed underquoting bug (caused configure script to
	not work)

2001-04-21  Steven G. Johnson  <[e-mail]>

	* fortran/f77_test.F: more compilation notes

2001-04-01  fftw  <[e-mail]>

	* acinclude.m4: Use -O3 instead of -O6 with gcc.  -O6 isn't a real
	flag anyway, and it is not recognized by some versions of gcc
	(notably, Apple's hacked-up version on MacOS X).

2001-03-08  fftw  <[e-mail]>

	* acx_pthread.m4: check for -mt *after* -lpthread. -mt links only
	-lthread, but this sometimes mysteriously works, and I don't want
	to link in more than I have to or rely on something which seems to
	be undocumented(?).

2001-02-16  fftw  <[e-mail]>

	* configure.in: Steven Berukoff reports that -lmpich is needed,
	even with mpicc, for some MPI installations.

2000-12-30  fftw  <[e-mail]>

	* acx_pthread.m4: minor comment fix

	* acx_pthread.m4: clarified -mt effects

2000-12-21  Steven G. Johnson  <[e-mail]>

	* acx_pthread.m4: not sure if -mt uses -lpthread...

	* acx_pthread.m4: added -mt flag

2000-12-09  fftw  <[e-mail]>

	* acx_pthread.m4: fixed position of AC_REQUIRE

	* FAQ/fftw-faq.bfnn: addressed finite-precision floating-point in
	FAQ

2000-10-22  fftw  <[e-mail]>

	* acx_pthread.m4: fixed comment

	* gensrc/genfft.ml, gensrc/symmetry.ml: whoops, undo accidental
	commit

	* acx_pthread.m4, gensrc/genfft.ml, gensrc/symmetry.ml: many
	changes

2000-10-16  fftw  <[e-mail]>

	* doc/fftw.texi: point rfftw users to fftw for prime sizes

2000-10-04  fftw  <[e-mail]>

	* acinclude.m4: newer xlc versions reportedly accept -qarch=auto
	to automatically tune for the native host.

2000-07-03  fftw  <[e-mail]>

	* acinclude.m4: Punt on guessing -qarch/-qtune flags for AIX,
	since there seems to be no good way to guess the CPU.

2000-06-26  Matteo Frigo  <[e-mail]>

	* fftw/fftwnd.c: Unrolled loop to expose more parallelism.

2000-06-07  fftw  <[e-mail]>

	* configure.in: Added "mpcc" MPI compiler for IBM SP3.  thanks to
	Ferenc Molnar for the information.

2000-06-03  Matteo Frigo  <[e-mail]>

	* gensrc/complex.ml, gensrc/complex.mli, gensrc/genfft.ml,
	gensrc/symmetry.ml, gensrc/variable.ml: Implemented mp3mdct
	generation mode for generating the MDCT used in mp3.

2000-06-02  Matteo Frigo  <[e-mail]>

	* cilk/executor_cilk.cilk, cilk/fftw_cilk.cilkh,
	cilk/fftwnd_cilk.cilk, cilk/Makefile, cilk/test_cilk.cilk,
	cilk/time_cilk.cilk, fftw/malloc.c, fftw/planner.c, fftw/putils.c,
	fftw/rader.c, fftw/twiddle.c: Adapted (simplified) to the
	forthcoming Cilk-5.3

	* gensrc/exprdag.ml: Iterate optimization until convergence.
	Saves two fops in fhb_9.c

2000-05-29  fftw  <[e-mail]>

	* acx_pthread.m4: The autoconf folks like the macro name to be
	quoted in AC_DEFUN.

2000-05-20  fftw  <[e-mail]>

	* fftw/fftw.h.in: If the user includes <complex.h> before
	<fftw.h>, then use the new C99 complex type for fftw_complex.
	This way, all the arithmetic operators, etcetera, are available to
	the user.  The C99 complex type should be binary-compatible with
	FFTW's struct-based type.

	* gensrc/ast.ml: deleted unused file

2000-05-19  Steven G. Johnson  <[e-mail]>

	* acx_pthread.m4: synchronized with macro archive, and added in
	Sequent -Kthread support.

2000-04-05  Steven G. Johnson  <[e-mail]>

	* doc/fftw.texi: slight change for clarity

2000-03-31  Steven G. Johnson  <[e-mail]>

	* acx_pthread.m4: only have one @author line, in accordance with
	needs of the autoconf macro archive.

2000-03-24  fftw  <[e-mail]>

	* acx_pthread.m4: check to see if threads work with no arguments
	before trying -kthread, to avoid compiler warnings on such
	systems.

2000-03-23  fftw  <[e-mail]>

	* configure.in: output message change

2000-03-23  Steven G. Johnson  <[e-mail]>

	* acx_pthread.m4: minor change

	* acx_pthread.m4: try PTHREAD_LIBS and PTHREAD_CFLAGS environment
	variables first

	* acx_pthread.m4: Added FreeBSD LinuxThreads port (-llthread)
	support.  Thanks to Jonathan Wilkins for his time and the use of
	his machine.

2000-03-21  fftw  <[e-mail]>

	* acx_pthread.m4: fixed AC_DEFINE for HAVE_PTHREAD

	* acx_pthread.m4: added acknowledgments

	* acx_pthread.m4: include description strings for AC_DEFINEs so
	that autoheader will work

	* acx_pthread.m4: check for pthread.h before checking for threads
	libraries

	* acx_pthread.m4: don't check for cc_r if threads weren't found

	* acx_pthread.m4: check for -kthread, then -lpthread, then
	-pthread

	* threads/fftw_threads_test.c: added missing newline to error
	message

	* doc/fftw.texi: documented --with-openmp and --with-sgimp

	* threads/fftw_threads.c: bug fix in compiler thread directive
	loop

2000-03-20  fftw  <[e-mail]>

	* configure.in, fftw/config.h.in, threads/fftw_threads.c,
	threads/fftw_threads-int.h: added experimental support for openmp
	and sgi mp compiler directives for threads code

	* Makefile.am: make sure acx_pthread.m4 is included in the dist

	* acx_pthread.m4: minor rewording in comment

	* acx_pthread.m4, configure.in, fftw/config.h.in,
	threads/fftw_threads.c: Separated POSIX threads library checks
	into a separate macro (ACX_PTHREAD) for submission to the autoconf
	macro repository (replacing an earlier macro there by Alejandro
	Cuervo).  Also, added checks for -pthread compiler flag required
	on FreeBSD (thanks to Jonathan Wilkins for the use of his machine
	for testing).

2000-03-02  Steven G. Johnson  <[e-mail]>

	* ChangeLog: fixed email addresses

	* ChangeLog: updated

	* mpi/sched.c, mpi/test_transpose_mpi.c, mpi/transpose_mpi.c,
	rfftw/rexec2.c, rfftw/rexec.c, rfftw/rfftwf77.c, rfftw/rfftw.h,
	rfftw/rfftwnd.c, rfftw/rgeneric.c, rfftw/rplanner.c,
	tests/fftw_test.c, tests/rfftw_test.c, tests/test_main.c,
	threads/executor_threads.c, threads/fftw_f77_threads.c,
	threads/fftwnd_threads.c, threads/fftw_threads.c,
	threads/fftw_threads.h, threads/fftw_threads-int.h,
	threads/fftw_threads_test.c, threads/rexec2_threads.c,
	threads/rexec_threads.c, threads/rfftw_f77_threads.c,
	threads/rfftwnd_threads.c, threads/rfftw_threads.h,
	threads/rfftw_threads_test.c, configure.in, fftw/executor.c,
	fftw/f77_func.h, fftw/fftwf77.c, fftw/fftw-int.h, fftw/fftwnd.c,
	fftw/generic.c, fftw/malloc.c, fftw/planner.c, fftw/putils.c,
	fftw/rader.c, fftw/timer.c, fftw/twiddle.c, fftw/wisdom.c,
	fftw/wisdomio.c, gensrc/codelet_prelude, gensrc/config_prelude,
	gensrc/rconfig_prelude, matlab/fftw.c, mpi/fftw_f77_mpi.h,
	mpi/fftw_mpi.c, mpi/fftw_mpi.h, mpi/fftw_mpi_test.c,
	mpi/fftwnd_mpi.c, mpi/rfftw_f77_mpi.c, mpi/rfftw_mpi.h,
	mpi/rfftw_mpi_test.c, mpi/rfftwnd_mpi.c, mpi/TOMS_transpose.h:
	whoops, kill acx_pthread test code

Wed Feb 23 17:07:23 2000  fftw  <[e-mail]>

	* mpi/README.f77: noted column-major slab decomposition

Tue Feb 22 00:23:44 2000  Matteo Frigo  <[e-mail]>

	* doc/fftw.texi: Changed ``@iftex\\@tex\\@end tex\\@end iftex'' to
	``@tex\\@end tex'' because nesting is broken with texi2dvi-3.12
	and texi2dvi-4.00.  I don't know whether this is a texi2dvi bug or
	our fault.  (Nesting works properly if one does not use texi2dvi.)

Mon Feb 14 19:41:37 2000  Matteo Frigo  <[e-mail]>

	* gensrc/rconfig_prelude: Removed copyright, because it is added
	by makerconfig.sh.

Fri Feb 11 07:15:05 2000  fftw  <[e-mail]>

	* FAQ/fftw-faq.bfnn: Noted problems with DEC CC.  Thanks to Xavier
	Marduel for the bug report.

Sun Feb  6 20:01:52 2000  fftw  <[e-mail]>

	* gensrc/Makefile.fftw.am, gensrc/Makefile.rfftw.am,
	mpi/Makefile.am, threads/Makefile.am: Use $(srcdir)/foo instead of