--- /srv/reproducible-results/rbuild-debian/r-b-build.TVU8mjKb/b1/fftw_2.1.5-7_i386.changes +++ /srv/reproducible-results/rbuild-debian/r-b-build.TVU8mjKb/b2/fftw_2.1.5-7_i386.changes ├── Files │ @@ -1,8 +1,8 @@ │ │ c6c397aad858da739e972af5b399aa4a 234552 oldlibs optional fftw-dev_2.1.5-7_i386.deb │ - 930003d0187b1f40c309b2bd3a6c9899 273444 doc optional fftw-docs_2.1.5-7_all.deb │ + d84b531fd1a073dbafc6046238a7e574 273396 doc optional fftw-docs_2.1.5-7_all.deb │ 9e7d65be1344ecbcce59b39448b928ec 11244 debug optional fftw2-dbgsym_2.1.5-7_i386.deb │ 127c4e96e0a4c1a8451fa21067f0b752 196320 oldlibs optional fftw2_2.1.5-7_i386.deb │ 1b2942a6ba94467687063b221507a942 230468 oldlibs optional sfftw-dev_2.1.5-7_i386.deb │ 1cda5cfcb9417ed4c90d7bab6c363f95 11280 debug optional sfftw2-dbgsym_2.1.5-7_i386.deb │ aaf899dcf2251d745f76f189c5704871 191700 oldlibs optional sfftw2_2.1.5-7_i386.deb ├── fftw-docs_2.1.5-7_all.deb │ ├── file list │ │ @@ -1,3 +1,3 @@ │ │ -rw-r--r-- 0 0 0 4 2024-08-01 11:21:10.000000 debian-binary │ │ --rw-r--r-- 0 0 0 1976 2024-08-01 11:21:10.000000 control.tar.xz │ │ --rw-r--r-- 0 0 0 271276 2024-08-01 11:21:10.000000 data.tar.xz │ │ +-rw-r--r-- 0 0 0 1968 2024-08-01 11:21:10.000000 control.tar.xz │ │ +-rw-r--r-- 0 0 0 271236 2024-08-01 11:21:10.000000 data.tar.xz │ ├── control.tar.xz │ │ ├── control.tar │ │ │ ├── ./md5sums │ │ │ │ ├── ./md5sums │ │ │ │ │┄ Files differ │ ├── data.tar.xz │ │ ├── data.tar │ │ │ ├── file list │ │ │ │ @@ -1,19 +1,19 @@ │ │ │ │ drwxr-xr-x 0 root (0) root (0) 0 2024-08-01 11:21:10.000000 ./ │ │ │ │ drwxr-xr-x 0 root (0) root (0) 0 2024-08-01 11:21:10.000000 ./usr/ │ │ │ │ drwxr-xr-x 0 root (0) root (0) 0 2024-08-01 11:21:10.000000 ./usr/share/ │ │ │ │ drwxr-xr-x 0 root (0) root (0) 0 2024-08-01 11:21:10.000000 ./usr/share/doc/ │ │ │ │ drwxr-xr-x 0 root (0) root (0) 0 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/ │ │ │ │ drwxr-xr-x 0 root (0) root (0) 0 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/FAQ/ │ │ │ │ --rw-r--r-- 0 root (0) root (0) 6123 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/FAQ/index.html │ │ │ │ --rw-r--r-- 0 root (0) root (0) 3350 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/FAQ/section1.html │ │ │ │ --rw-r--r-- 0 root (0) root (0) 7661 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/FAQ/section2.html │ │ │ │ --rw-r--r-- 0 root (0) root (0) 8183 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/FAQ/section3.html │ │ │ │ --rw-r--r-- 0 root (0) root (0) 3767 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/FAQ/section4.html │ │ │ │ --rw-r--r-- 0 root (0) root (0) 5439 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/FAQ/section5.html │ │ │ │ +-rw-r--r-- 0 root (0) root (0) 6122 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/FAQ/index.html │ │ │ │ +-rw-r--r-- 0 root (0) root (0) 3349 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/FAQ/section1.html │ │ │ │ +-rw-r--r-- 0 root (0) root (0) 7660 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/FAQ/section2.html │ │ │ │ +-rw-r--r-- 0 root (0) root (0) 8182 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/FAQ/section3.html │ │ │ │ +-rw-r--r-- 0 root (0) root (0) 3766 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/FAQ/section4.html │ │ │ │ +-rw-r--r-- 0 root (0) root (0) 5438 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/FAQ/section5.html │ │ │ │ -rw-r--r-- 0 root (0) root (0) 5193 2003-03-24 07:28:04.000000 ./usr/share/doc/fftw-docs/NEWS.gz │ │ │ │ -rw-r--r-- 0 root (0) root (0) 2443 2003-03-16 23:43:18.000000 ./usr/share/doc/fftw-docs/README │ │ │ │ -rw-r--r-- 0 root (0) root (0) 5147 2003-03-16 23:43:18.000000 ./usr/share/doc/fftw-docs/README.hacks │ │ │ │ -rw-r--r-- 0 root (0) root (0) 3165 2003-03-16 23:43:18.000000 ./usr/share/doc/fftw-docs/TODO │ │ │ │ -rw-r--r-- 0 root (0) root (0) 1084 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/changelog.Debian.gz │ │ │ │ -rw-r--r-- 0 root (0) root (0) 43492 2003-03-24 07:05:04.000000 ./usr/share/doc/fftw-docs/changelog.gz │ │ │ │ -rw-r--r-- 0 root (0) root (0) 867 2024-08-01 11:17:42.000000 ./usr/share/doc/fftw-docs/copyright │ │ │ │ @@ -36,24 +36,24 @@ │ │ │ │ -rw-r--r-- 0 root (0) root (0) 25555 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/examples/tests/test_main.c │ │ │ │ -rw-r--r-- 0 root (0) root (0) 3049 2003-03-16 23:43:19.000000 ./usr/share/doc/fftw-docs/examples/tests/test_main.h │ │ │ │ drwxr-xr-x 0 root (0) root (0) 0 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/examples/threads/ │ │ │ │ -rw-r--r-- 0 root (0) root (0) 355 2024-08-01 11:17:42.000000 ./usr/share/doc/fftw-docs/examples/threads/Makefile │ │ │ │ -rw-r--r-- 0 root (0) root (0) 10466 2003-03-16 23:43:19.000000 ./usr/share/doc/fftw-docs/examples/threads/fftw_threads-int.h │ │ │ │ -rw-r--r-- 0 root (0) root (0) 18931 2003-03-16 23:43:46.000000 ./usr/share/doc/fftw-docs/examples/threads/fftw_threads_test.c │ │ │ │ -rw-r--r-- 0 root (0) root (0) 25220 2003-03-16 23:43:19.000000 ./usr/share/doc/fftw-docs/examples/threads/rfftw_threads_test.c │ │ │ │ --rw-r--r-- 0 root (0) root (0) 7558 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/fftw-faq.ascii.gz │ │ │ │ +-rw-r--r-- 0 root (0) root (0) 7559 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/fftw-faq.ascii.gz │ │ │ │ drwxr-xr-x 0 root (0) root (0) 0 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/html/ │ │ │ │ -rw-r--r-- 0 root (0) root (0) 19099 2003-03-16 23:43:18.000000 ./usr/share/doc/fftw-docs/html/equation-1.gif │ │ │ │ -rw-r--r-- 0 root (0) root (0) 18344 2003-03-16 23:43:18.000000 ./usr/share/doc/fftw-docs/html/equation-2.gif │ │ │ │ -rw-r--r-- 0 root (0) root (0) 10238 2003-03-16 23:43:18.000000 ./usr/share/doc/fftw-docs/html/equation-3.gif │ │ │ │ -rw-r--r-- 0 root (0) root (0) 36918 2003-03-16 23:43:18.000000 ./usr/share/doc/fftw-docs/html/equation-4.gif │ │ │ │ -rw-r--r-- 0 root (0) root (0) 19716 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/html/fftw.html │ │ │ │ -rw-r--r-- 0 root (0) root (0) 11299 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/html/fftw_1.html │ │ │ │ -rw-r--r-- 0 root (0) root (0) 28023 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/html/fftw_10.html │ │ │ │ --rw-r--r-- 0 root (0) root (0) 31261 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/html/fftw_11.html │ │ │ │ +-rw-r--r-- 0 root (0) root (0) 31283 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/html/fftw_11.html │ │ │ │ -rw-r--r-- 0 root (0) root (0) 17959 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/html/fftw_12.html │ │ │ │ -rw-r--r-- 0 root (0) root (0) 71454 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/html/fftw_2.html │ │ │ │ -rw-r--r-- 0 root (0) root (0) 124464 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/html/fftw_3.html │ │ │ │ -rw-r--r-- 0 root (0) root (0) 70151 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/html/fftw_4.html │ │ │ │ -rw-r--r-- 0 root (0) root (0) 20574 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/html/fftw_5.html │ │ │ │ -rw-r--r-- 0 root (0) root (0) 33475 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/html/fftw_6.html │ │ │ │ -rw-r--r-- 0 root (0) root (0) 7335 2024-08-01 11:21:10.000000 ./usr/share/doc/fftw-docs/html/fftw_7.html │ │ │ ├── ./usr/share/doc/fftw-docs/FAQ/index.html │ │ │ │ @@ -81,12 +81,12 @@ │ │ │ │ AIX. │ │ │ │
  • Q5.10. FFTW 2.1.2's complex transforms give incorrect results for large prime │ │ │ │ sizes. │ │ │ │
  • Q5.11. FFTW 2.1.3 crashes on AIX │ │ │ │
    │ │ │ │
    │ │ │ │ Matteo Frigo and Steven G. Johnson / fftw@fftw.org │ │ │ │ -- 05 December 2024 │ │ │ │ +- 07 January 2026 │ │ │ │

    │ │ │ │ Extracted from FFTW Frequently Asked Questions with Answers, │ │ │ │ -Copyright © 2024 Massachusetts Institute of Technology. │ │ │ │ +Copyright © 2026 Massachusetts Institute of Technology. │ │ │ │ │ │ │ │ ├── html2text {} │ │ │ │ │ @@ -54,11 +54,11 @@ │ │ │ │ │ _f_a_c_t_o_r_s_ _1_7_ _t_o_ _9_7_. │ │ │ │ │ * _Q_5_._8_._ _F_F_T_W_ _2_._1_._1_'_s_ _M_P_I_ _t_e_s_t_ _p_r_o_g_r_a_m_s_ _c_r_a_s_h_ _w_i_t_h_ _M_P_I_C_H_. │ │ │ │ │ * _Q_5_._9_._ _F_F_T_W_ _2_._1_._2_'_s_ _m_u_l_t_i_-_t_h_r_e_a_d_e_d_ _t_r_a_n_s_f_o_r_m_s_ _d_o_n_'_t_ _w_o_r_k_ _o_n_ _A_I_X_. │ │ │ │ │ * _Q_5_._1_0_._ _F_F_T_W_ _2_._1_._2_'_s_ _c_o_m_p_l_e_x_ _t_r_a_n_s_f_o_r_m_s_ _g_i_v_e_ _i_n_c_o_r_r_e_c_t_ _r_e_s_u_l_t_s_ _f_o_r_ _l_a_r_g_e │ │ │ │ │ _p_r_i_m_e_ _s_i_z_e_s_. │ │ │ │ │ * _Q_5_._1_1_._ _F_F_T_W_ _2_._1_._3_ _c_r_a_s_h_e_s_ _o_n_ _A_I_X │ │ │ │ │ =============================================================================== │ │ │ │ │ - _M_a_t_t_e_o_ _F_r_i_g_o_ _a_n_d_ _S_t_e_v_e_n_ _G_._ _J_o_h_n_s_o_n / _f_f_t_w_@_f_f_t_w_._o_r_g - 05 December 2024 │ │ │ │ │ + _M_a_t_t_e_o_ _F_r_i_g_o_ _a_n_d_ _S_t_e_v_e_n_ _G_._ _J_o_h_n_s_o_n / _f_f_t_w_@_f_f_t_w_._o_r_g - 07 January 2026 │ │ │ │ │ │ │ │ │ │ -Extracted from FFTW Frequently Asked Questions with Answers, Copyright © 2024 │ │ │ │ │ +Extracted from FFTW Frequently Asked Questions with Answers, Copyright © 2026 │ │ │ │ │ Massachusetts Institute of Technology. │ │ │ ├── ./usr/share/doc/fftw-docs/FAQ/section1.html │ │ │ │ @@ -66,12 +66,12 @@ │ │ │ │ copyright to FFTW and they only let us GPL it because we convinced │ │ │ │ them that it would neither affect their licensing revenue nor irritate │ │ │ │ existing licensees.
    │ │ │ │ Next: Installing FFTW.
    │ │ │ │ Return to contents.

    │ │ │ │

    │ │ │ │ Matteo Frigo and Steven G. Johnson / fftw@fftw.org │ │ │ │ -- 05 December 2024 │ │ │ │ +- 07 January 2026 │ │ │ │

    │ │ │ │ Extracted from FFTW Frequently Asked Questions with Answers, │ │ │ │ -Copyright © 2024 Massachusetts Institute of Technology. │ │ │ │ +Copyright © 2026 Massachusetts Institute of Technology. │ │ │ │ │ │ │ │ ├── html2text {} │ │ │ │ │ @@ -32,11 +32,11 @@ │ │ │ │ │ We could instead have released FFTW under the LGPL, or even disallowed non-Free │ │ │ │ │ usage. Suffice it to say, however, that MIT owns the copyright to FFTW and they │ │ │ │ │ only let us GPL it because we convinced them that it would neither affect their │ │ │ │ │ licensing revenue nor irritate existing licensees. │ │ │ │ │ =============================================================================== │ │ │ │ │ Next: _I_n_s_t_a_l_l_i_n_g_ _F_F_T_W. │ │ │ │ │ _R_e_t_u_r_n_ _t_o_ _c_o_n_t_e_n_t_s. │ │ │ │ │ - _M_a_t_t_e_o_ _F_r_i_g_o_ _a_n_d_ _S_t_e_v_e_n_ _G_._ _J_o_h_n_s_o_n / _f_f_t_w_@_f_f_t_w_._o_r_g - 05 December 2024 │ │ │ │ │ + _M_a_t_t_e_o_ _F_r_i_g_o_ _a_n_d_ _S_t_e_v_e_n_ _G_._ _J_o_h_n_s_o_n / _f_f_t_w_@_f_f_t_w_._o_r_g - 07 January 2026 │ │ │ │ │ │ │ │ │ │ -Extracted from FFTW Frequently Asked Questions with Answers, Copyright © 2024 │ │ │ │ │ +Extracted from FFTW Frequently Asked Questions with Answers, Copyright © 2026 │ │ │ │ │ Massachusetts Institute of Technology. │ │ │ ├── ./usr/share/doc/fftw-docs/FAQ/section2.html │ │ │ │ @@ -159,12 +159,12 @@ │ │ │ │ On a Unix system: configure --enable-float. On a non-Unix system: edit fftw/fftw.h to #define the symbol FFTW_ENABLE_FLOAT. In both cases, you must then recompile │ │ │ │ FFTW.
    │ │ │ │ Next: Using FFTW.
    │ │ │ │ Back: Introduction and General Information.
    │ │ │ │ Return to contents.

    │ │ │ │

    │ │ │ │ Matteo Frigo and Steven G. Johnson / fftw@fftw.org │ │ │ │ -- 05 December 2024 │ │ │ │ +- 07 January 2026 │ │ │ │

    │ │ │ │ Extracted from FFTW Frequently Asked Questions with Answers, │ │ │ │ -Copyright © 2024 Massachusetts Institute of Technology. │ │ │ │ +Copyright © 2026 Massachusetts Institute of Technology. │ │ │ │ │ │ │ │ ├── html2text {} │ │ │ │ │ @@ -87,11 +87,11 @@ │ │ │ │ │ On a Unix system: configure --enable-float. On a non-Unix system: edit fftw/ │ │ │ │ │ fftw.h to #define the symbol FFTW_ENABLE_FLOAT. In both cases, you must then │ │ │ │ │ recompile FFTW. │ │ │ │ │ =============================================================================== │ │ │ │ │ Next: _U_s_i_n_g_ _F_F_T_W. │ │ │ │ │ Back: _I_n_t_r_o_d_u_c_t_i_o_n_ _a_n_d_ _G_e_n_e_r_a_l_ _I_n_f_o_r_m_a_t_i_o_n. │ │ │ │ │ _R_e_t_u_r_n_ _t_o_ _c_o_n_t_e_n_t_s. │ │ │ │ │ - _M_a_t_t_e_o_ _F_r_i_g_o_ _a_n_d_ _S_t_e_v_e_n_ _G_._ _J_o_h_n_s_o_n / _f_f_t_w_@_f_f_t_w_._o_r_g - 05 December 2024 │ │ │ │ │ + _M_a_t_t_e_o_ _F_r_i_g_o_ _a_n_d_ _S_t_e_v_e_n_ _G_._ _J_o_h_n_s_o_n / _f_f_t_w_@_f_f_t_w_._o_r_g - 07 January 2026 │ │ │ │ │ │ │ │ │ │ -Extracted from FFTW Frequently Asked Questions with Answers, Copyright © 2024 │ │ │ │ │ +Extracted from FFTW Frequently Asked Questions with Answers, Copyright © 2026 │ │ │ │ │ Massachusetts Institute of Technology. │ │ │ ├── ./usr/share/doc/fftw-docs/FAQ/section3.html │ │ │ │ @@ -173,12 +173,12 @@ │ │ │ │ transform if they are larger than a few hundred elements. │ │ │ │
    │ │ │ │ Next: Internals of FFTW.
    │ │ │ │ Back: Installing FFTW.
    │ │ │ │ Return to contents.

    │ │ │ │

    │ │ │ │ Matteo Frigo and Steven G. Johnson / fftw@fftw.org │ │ │ │ -- 05 December 2024 │ │ │ │ +- 07 January 2026 │ │ │ │

    │ │ │ │ Extracted from FFTW Frequently Asked Questions with Answers, │ │ │ │ -Copyright © 2024 Massachusetts Institute of Technology. │ │ │ │ +Copyright © 2026 Massachusetts Institute of Technology. │ │ │ │ │ │ │ │ ├── html2text {} │ │ │ │ │ @@ -94,11 +94,11 @@ │ │ │ │ │ You cannot declare large arrays statically; you should use malloc (or │ │ │ │ │ equivalent) to allocate the arrays you want to transform if they are larger │ │ │ │ │ than a few hundred elements. │ │ │ │ │ =============================================================================== │ │ │ │ │ Next: _I_n_t_e_r_n_a_l_s_ _o_f_ _F_F_T_W. │ │ │ │ │ Back: _I_n_s_t_a_l_l_i_n_g_ _F_F_T_W. │ │ │ │ │ _R_e_t_u_r_n_ _t_o_ _c_o_n_t_e_n_t_s. │ │ │ │ │ - _M_a_t_t_e_o_ _F_r_i_g_o_ _a_n_d_ _S_t_e_v_e_n_ _G_._ _J_o_h_n_s_o_n / _f_f_t_w_@_f_f_t_w_._o_r_g - 05 December 2024 │ │ │ │ │ + _M_a_t_t_e_o_ _F_r_i_g_o_ _a_n_d_ _S_t_e_v_e_n_ _G_._ _J_o_h_n_s_o_n / _f_f_t_w_@_f_f_t_w_._o_r_g - 07 January 2026 │ │ │ │ │ │ │ │ │ │ -Extracted from FFTW Frequently Asked Questions with Answers, Copyright © 2024 │ │ │ │ │ +Extracted from FFTW Frequently Asked Questions with Answers, Copyright © 2026 │ │ │ │ │ Massachusetts Institute of Technology. │ │ │ ├── ./usr/share/doc/fftw-docs/FAQ/section4.html │ │ │ │ @@ -75,12 +75,12 @@ │ │ │ │

    │ │ │ │ In short, wisdom does more things with less effort, and seemed like The Right Thing to do.

    │ │ │ │ Next: Known bugs.
    │ │ │ │ Back: Using FFTW.
    │ │ │ │ Return to contents.

    │ │ │ │

    │ │ │ │ Matteo Frigo and Steven G. Johnson / fftw@fftw.org │ │ │ │ -- 05 December 2024 │ │ │ │ +- 07 January 2026 │ │ │ │

    │ │ │ │ Extracted from FFTW Frequently Asked Questions with Answers, │ │ │ │ -Copyright © 2024 Massachusetts Institute of Technology. │ │ │ │ +Copyright © 2026 Massachusetts Institute of Technology. │ │ │ │ │ │ │ │ ├── html2text {} │ │ │ │ │ @@ -40,11 +40,11 @@ │ │ │ │ │ can be reused. │ │ │ │ │ In short, wisdom does more things with less effort, and seemed like The Right │ │ │ │ │ Thing to do. │ │ │ │ │ =============================================================================== │ │ │ │ │ Next: _K_n_o_w_n_ _b_u_g_s. │ │ │ │ │ Back: _U_s_i_n_g_ _F_F_T_W. │ │ │ │ │ _R_e_t_u_r_n_ _t_o_ _c_o_n_t_e_n_t_s. │ │ │ │ │ - _M_a_t_t_e_o_ _F_r_i_g_o_ _a_n_d_ _S_t_e_v_e_n_ _G_._ _J_o_h_n_s_o_n / _f_f_t_w_@_f_f_t_w_._o_r_g - 05 December 2024 │ │ │ │ │ + _M_a_t_t_e_o_ _F_r_i_g_o_ _a_n_d_ _S_t_e_v_e_n_ _G_._ _J_o_h_n_s_o_n / _f_f_t_w_@_f_f_t_w_._o_r_g - 07 January 2026 │ │ │ │ │ │ │ │ │ │ -Extracted from FFTW Frequently Asked Questions with Answers, Copyright © 2024 │ │ │ │ │ +Extracted from FFTW Frequently Asked Questions with Answers, Copyright © 2026 │ │ │ │ │ Massachusetts Institute of Technology. │ │ │ ├── ./usr/share/doc/fftw-docs/FAQ/section5.html │ │ │ │ @@ -126,12 +126,12 @@ │ │ │ │ │ │ │ │ The FFTW 2.1.3 configure script picked incorrect compiler flags for the xlc compiler on newer IBM processors. This │ │ │ │ is fixed in FFTW 2.1.4.
    │ │ │ │ Back: Internals of FFTW.
    │ │ │ │ Return to contents.

    │ │ │ │

    │ │ │ │ Matteo Frigo and Steven G. Johnson / fftw@fftw.org │ │ │ │ -- 05 December 2024 │ │ │ │ +- 07 January 2026 │ │ │ │

    │ │ │ │ Extracted from FFTW Frequently Asked Questions with Answers, │ │ │ │ -Copyright © 2024 Massachusetts Institute of Technology. │ │ │ │ +Copyright © 2026 Massachusetts Institute of Technology. │ │ │ │ │ │ │ │ ├── html2text {} │ │ │ │ │ @@ -62,11 +62,11 @@ │ │ │ │ │ (Sizes without large prime factors are not affected.) │ │ │ │ │ ********** QQuueessttiioonn 55..1111.. FFFFTTWW 22..11..33 ccrraasshheess oonn AAIIXX ********** │ │ │ │ │ The FFTW 2.1.3 configure script picked incorrect compiler flags for the xlc │ │ │ │ │ compiler on newer IBM processors. This is fixed in FFTW 2.1.4. │ │ │ │ │ =============================================================================== │ │ │ │ │ Back: _I_n_t_e_r_n_a_l_s_ _o_f_ _F_F_T_W. │ │ │ │ │ _R_e_t_u_r_n_ _t_o_ _c_o_n_t_e_n_t_s. │ │ │ │ │ - _M_a_t_t_e_o_ _F_r_i_g_o_ _a_n_d_ _S_t_e_v_e_n_ _G_._ _J_o_h_n_s_o_n / _f_f_t_w_@_f_f_t_w_._o_r_g - 05 December 2024 │ │ │ │ │ + _M_a_t_t_e_o_ _F_r_i_g_o_ _a_n_d_ _S_t_e_v_e_n_ _G_._ _J_o_h_n_s_o_n / _f_f_t_w_@_f_f_t_w_._o_r_g - 07 January 2026 │ │ │ │ │ │ │ │ │ │ -Extracted from FFTW Frequently Asked Questions with Answers, Copyright © 2024 │ │ │ │ │ +Extracted from FFTW Frequently Asked Questions with Answers, Copyright © 2026 │ │ │ │ │ Massachusetts Institute of Technology. │ │ │ ├── ./usr/share/doc/fftw-docs/fftw-faq.ascii.gz │ │ │ │ ├── fftw-faq.ascii │ │ │ │ │ @@ -1,9 +1,9 @@ │ │ │ │ │ FFTW FREQUENTLY ASKED QUESTIONS WITH ANSWERS │ │ │ │ │ - 05 Dec 2024 │ │ │ │ │ + 07 Jan 2026 │ │ │ │ │ Matteo Frigo │ │ │ │ │ Steven G. Johnson │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ This is the list of Frequently Asked Questions about FFTW, a collection of │ │ │ │ │ fast C routines for computing the Discrete Fourier Transform in one or │ │ │ │ │ more dimensions. │ │ │ ├── ./usr/share/doc/fftw-docs/html/fftw_11.html │ │ │ │ @@ -99,25 +99,25 @@ │ │ │ │ fftwnd_one2.2 Complex Multi-dimensional Transforms Tutorial │ │ │ │ fftwnd_one3.3.2 Computing the Multi-dimensional Transform │ │ │ │ fftwnd_plan2.2 Complex Multi-dimensional Transforms Tutorial │ │ │ │ fftwnd_plan3.3.1 Plan Creation for Multi-dimensional Transforms │ │ │ │ fftwnd_threads4.1.2 Usage of Multi-threaded FFTW │ │ │ │ fftwnd_threads_one4.1.2 Usage of Multi-threaded FFTW │ │ │ │ FFTW_BACKWARD2.1 Complex One-dimensional Transforms Tutorial │ │ │ │ -fftw_complex2.1 Complex One-dimensional Transforms Tutorial │ │ │ │ FFTW_COMPLEX3.1 Data Types │ │ │ │ +fftw_complex2.1 Complex One-dimensional Transforms Tutorial │ │ │ │ fftw_complex3.1 Data Types │ │ │ │ FFTW_COMPLEX_TO_REAL2.3 Real One-dimensional Transforms Tutorial │ │ │ │ FFTW_COMPLEX_TO_REALArguments │ │ │ │ FFTW_COMPLEX_TO_REAL4.2.4 Usage of MPI FFTW for Real Multi-dimensional Transforms │ │ │ │ fftw_create_plan2.1 Complex One-dimensional Transforms Tutorial │ │ │ │ fftw_create_plan3.2.1 Plan Creation for One-dimensional Transforms │ │ │ │ fftw_create_plan_specific3.2.1 Plan Creation for One-dimensional Transforms │ │ │ │ -fftw_destroy_plan3.2.4 Destroying a One-dimensional Plan │ │ │ │ -fftw_direction2.2 Complex Multi-dimensional Transforms Tutorial │ │ │ │ +fftw_destroy_plan2.1 Complex One-dimensional Transforms Tutorial │ │ │ │ +fftw_direction2.1 Complex One-dimensional Transforms Tutorial │ │ │ │ fftw_direction2.3 Real One-dimensional Transforms Tutorial │ │ │ │ fftw_direction3.2.1 Plan Creation for One-dimensional Transforms │ │ │ │ fftw_direction3.3.1 Plan Creation for Multi-dimensional Transforms │ │ │ │ fftw_direction3.5.1 Plan Creation for Real Multi-dimensional Transforms │ │ │ │ FFTW_ENABLE_FLOAT3.1 Data Types │ │ │ │ FFTW_ESTIMATE2.1 Complex One-dimensional Transforms Tutorial │ │ │ │ fftw_export_wisdom2.6 Words of Wisdom │ │ │ │ @@ -153,16 +153,16 @@ │ │ │ │ fftw_mpi_test4.2.6 MPI Tips │ │ │ │ FFTW_NORMAL_ORDER4.2.2 Usage of MPI FFTW for Complex Multi-dimensional Transforms │ │ │ │ fftw_one2.1 Complex One-dimensional Transforms Tutorial │ │ │ │ fftw_one3.2.3 Computing the One-dimensional Transform │ │ │ │ FFTW_OUT_OF_PLACEArguments │ │ │ │ fftw_plan2.1 Complex One-dimensional Transforms Tutorial │ │ │ │ fftw_plan3.2.1 Plan Creation for One-dimensional Transforms │ │ │ │ -FFTW_REAL3.1 Data Types │ │ │ │ fftw_real3.1 Data Types │ │ │ │ +FFTW_REAL3.1 Data Types │ │ │ │ FFTW_REAL_TO_COMPLEX2.3 Real One-dimensional Transforms Tutorial │ │ │ │ FFTW_REAL_TO_COMPLEXArguments │ │ │ │ FFTW_SCRAMBLED_INPUT4.2.5 Usage of MPI FFTW for Complex One-dimensional Transforms │ │ │ │ FFTW_SCRAMBLED_OUTPUT4.2.5 Usage of MPI FFTW for Complex One-dimensional Transforms │ │ │ │ fftw_test6.2 Installation on non-Unix Systems │ │ │ │ fftw_test6.4 gcc and Pentium hacks │ │ │ │ fftw_threads4.1.2 Usage of Multi-threaded FFTW │ │ │ │ ├── html2text {} │ │ │ │ │ @@ -55,30 +55,31 @@ │ │ │ │ │ _T_u_t_o_r_i_a_l │ │ │ │ │ _f_f_t_w_n_d___p_l_a_n _3_._3_._1_ _P_l_a_n_ _C_r_e_a_t_i_o_n_ _f_o_r_ _M_u_l_t_i_-_d_i_m_e_n_s_i_o_n_a_l │ │ │ │ │ _T_r_a_n_s_f_o_r_m_s │ │ │ │ │ _f_f_t_w_n_d___t_h_r_e_a_d_s _4_._1_._2_ _U_s_a_g_e_ _o_f_ _M_u_l_t_i_-_t_h_r_e_a_d_e_d_ _F_F_T_W │ │ │ │ │ _f_f_t_w_n_d___t_h_r_e_a_d_s___o_n_e _4_._1_._2_ _U_s_a_g_e_ _o_f_ _M_u_l_t_i_-_t_h_r_e_a_d_e_d_ _F_F_T_W │ │ │ │ │ _F_F_T_W___B_A_C_K_W_A_R_D _2_._1_ _C_o_m_p_l_e_x_ _O_n_e_-_d_i_m_e_n_s_i_o_n_a_l_ _T_r_a_n_s_f_o_r_m_s │ │ │ │ │ _T_u_t_o_r_i_a_l │ │ │ │ │ + _F_F_T_W___C_O_M_P_L_E_X _3_._1_ _D_a_t_a_ _T_y_p_e_s │ │ │ │ │ _f_f_t_w___c_o_m_p_l_e_x _2_._1_ _C_o_m_p_l_e_x_ _O_n_e_-_d_i_m_e_n_s_i_o_n_a_l_ _T_r_a_n_s_f_o_r_m_s │ │ │ │ │ _T_u_t_o_r_i_a_l │ │ │ │ │ - _F_F_T_W___C_O_M_P_L_E_X _3_._1_ _D_a_t_a_ _T_y_p_e_s │ │ │ │ │ _f_f_t_w___c_o_m_p_l_e_x _3_._1_ _D_a_t_a_ _T_y_p_e_s │ │ │ │ │ _F_F_T_W___C_O_M_P_L_E_X___T_O___R_E_A_L _2_._3_ _R_e_a_l_ _O_n_e_-_d_i_m_e_n_s_i_o_n_a_l_ _T_r_a_n_s_f_o_r_m_s_ _T_u_t_o_r_i_a_l │ │ │ │ │ _F_F_T_W___C_O_M_P_L_E_X___T_O___R_E_A_L _A_r_g_u_m_e_n_t_s │ │ │ │ │ _F_F_T_W___C_O_M_P_L_E_X___T_O___R_E_A_L _4_._2_._4_ _U_s_a_g_e_ _o_f_ _M_P_I_ _F_F_T_W_ _f_o_r_ _R_e_a_l_ _M_u_l_t_i_- │ │ │ │ │ _d_i_m_e_n_s_i_o_n_a_l_ _T_r_a_n_s_f_o_r_m_s │ │ │ │ │ _f_f_t_w___c_r_e_a_t_e___p_l_a_n _2_._1_ _C_o_m_p_l_e_x_ _O_n_e_-_d_i_m_e_n_s_i_o_n_a_l_ _T_r_a_n_s_f_o_r_m_s │ │ │ │ │ _T_u_t_o_r_i_a_l │ │ │ │ │ _f_f_t_w___c_r_e_a_t_e___p_l_a_n _3_._2_._1_ _P_l_a_n_ _C_r_e_a_t_i_o_n_ _f_o_r_ _O_n_e_-_d_i_m_e_n_s_i_o_n_a_l │ │ │ │ │ _T_r_a_n_s_f_o_r_m_s │ │ │ │ │ _f_f_t_w___c_r_e_a_t_e___p_l_a_n___s_p_e_c_i_f_i_c _3_._2_._1_ _P_l_a_n_ _C_r_e_a_t_i_o_n_ _f_o_r_ _O_n_e_-_d_i_m_e_n_s_i_o_n_a_l │ │ │ │ │ _T_r_a_n_s_f_o_r_m_s │ │ │ │ │ - _f_f_t_w___d_e_s_t_r_o_y___p_l_a_n _3_._2_._4_ _D_e_s_t_r_o_y_i_n_g_ _a_ _O_n_e_-_d_i_m_e_n_s_i_o_n_a_l_ _P_l_a_n │ │ │ │ │ - _f_f_t_w___d_i_r_e_c_t_i_o_n _2_._2_ _C_o_m_p_l_e_x_ _M_u_l_t_i_-_d_i_m_e_n_s_i_o_n_a_l_ _T_r_a_n_s_f_o_r_m_s │ │ │ │ │ + _f_f_t_w___d_e_s_t_r_o_y___p_l_a_n _2_._1_ _C_o_m_p_l_e_x_ _O_n_e_-_d_i_m_e_n_s_i_o_n_a_l_ _T_r_a_n_s_f_o_r_m_s │ │ │ │ │ + _T_u_t_o_r_i_a_l │ │ │ │ │ + _f_f_t_w___d_i_r_e_c_t_i_o_n _2_._1_ _C_o_m_p_l_e_x_ _O_n_e_-_d_i_m_e_n_s_i_o_n_a_l_ _T_r_a_n_s_f_o_r_m_s │ │ │ │ │ _T_u_t_o_r_i_a_l │ │ │ │ │ _f_f_t_w___d_i_r_e_c_t_i_o_n _2_._3_ _R_e_a_l_ _O_n_e_-_d_i_m_e_n_s_i_o_n_a_l_ _T_r_a_n_s_f_o_r_m_s_ _T_u_t_o_r_i_a_l │ │ │ │ │ _f_f_t_w___d_i_r_e_c_t_i_o_n _3_._2_._1_ _P_l_a_n_ _C_r_e_a_t_i_o_n_ _f_o_r_ _O_n_e_-_d_i_m_e_n_s_i_o_n_a_l │ │ │ │ │ _T_r_a_n_s_f_o_r_m_s │ │ │ │ │ _f_f_t_w___d_i_r_e_c_t_i_o_n _3_._3_._1_ _P_l_a_n_ _C_r_e_a_t_i_o_n_ _f_o_r_ _M_u_l_t_i_-_d_i_m_e_n_s_i_o_n_a_l │ │ │ │ │ _T_r_a_n_s_f_o_r_m_s │ │ │ │ │ _f_f_t_w___d_i_r_e_c_t_i_o_n _3_._5_._1_ _P_l_a_n_ _C_r_e_a_t_i_o_n_ _f_o_r_ _R_e_a_l_ _M_u_l_t_i_-_d_i_m_e_n_s_i_o_n_a_l │ │ │ │ │ @@ -131,16 +132,16 @@ │ │ │ │ │ _T_u_t_o_r_i_a_l │ │ │ │ │ _f_f_t_w___o_n_e _3_._2_._3_ _C_o_m_p_u_t_i_n_g_ _t_h_e_ _O_n_e_-_d_i_m_e_n_s_i_o_n_a_l_ _T_r_a_n_s_f_o_r_m │ │ │ │ │ _F_F_T_W___O_U_T___O_F___P_L_A_C_E _A_r_g_u_m_e_n_t_s │ │ │ │ │ _f_f_t_w___p_l_a_n _2_._1_ _C_o_m_p_l_e_x_ _O_n_e_-_d_i_m_e_n_s_i_o_n_a_l_ _T_r_a_n_s_f_o_r_m_s │ │ │ │ │ _T_u_t_o_r_i_a_l │ │ │ │ │ _f_f_t_w___p_l_a_n _3_._2_._1_ _P_l_a_n_ _C_r_e_a_t_i_o_n_ _f_o_r_ _O_n_e_-_d_i_m_e_n_s_i_o_n_a_l │ │ │ │ │ _T_r_a_n_s_f_o_r_m_s │ │ │ │ │ - _F_F_T_W___R_E_A_L _3_._1_ _D_a_t_a_ _T_y_p_e_s │ │ │ │ │ _f_f_t_w___r_e_a_l _3_._1_ _D_a_t_a_ _T_y_p_e_s │ │ │ │ │ + _F_F_T_W___R_E_A_L _3_._1_ _D_a_t_a_ _T_y_p_e_s │ │ │ │ │ _F_F_T_W___R_E_A_L___T_O___C_O_M_P_L_E_X _2_._3_ _R_e_a_l_ _O_n_e_-_d_i_m_e_n_s_i_o_n_a_l_ _T_r_a_n_s_f_o_r_m_s_ _T_u_t_o_r_i_a_l │ │ │ │ │ _F_F_T_W___R_E_A_L___T_O___C_O_M_P_L_E_X _A_r_g_u_m_e_n_t_s │ │ │ │ │ _F_F_T_W___S_C_R_A_M_B_L_E_D___I_N_P_U_T _4_._2_._5_ _U_s_a_g_e_ _o_f_ _M_P_I_ _F_F_T_W_ _f_o_r_ _C_o_m_p_l_e_x_ _O_n_e_- │ │ │ │ │ _d_i_m_e_n_s_i_o_n_a_l_ _T_r_a_n_s_f_o_r_m_s │ │ │ │ │ _F_F_T_W___S_C_R_A_M_B_L_E_D___O_U_T_P_U_T _4_._2_._5_ _U_s_a_g_e_ _o_f_ _M_P_I_ _F_F_T_W_ _f_o_r_ _C_o_m_p_l_e_x_ _O_n_e_- │ │ │ │ │ _d_i_m_e_n_s_i_o_n_a_l_ _T_r_a_n_s_f_o_r_m_s │ │ │ │ │ _f_f_t_w___t_e_s_t _6_._2_ _I_n_s_t_a_l_l_a_t_i_o_n_ _o_n_ _n_o_n_-_U_n_i_x_ _S_y_s_t_e_m_s