Hello everyone, I'm currently working on somekind of "fork" of a patch I found(it's a groovebox patch coded by Martin Birkmann). It consume quite a lot of CPU, on my current Laptop equiped with an Intel® Core™ i3-6006U CPU, it ran up 50% on the first core. Since i want to be able to run it on a Raspberry Pi 3, running the patch at about 1 ghz on a single core is just not possible. Then I looked up how I could optimizes the use of the cpu, I tried to use some puredata command flag, tried to simplify and hide most of the GUI and even tried to split up the patch with subprocesses with pd~.

First flags, changes of priority, realtime ect... doesn't do anything for the use of CPU. Secondly hiding some GUI maybe help to grab 1% or 2% of CPU. Finaly, I had great hope that pd~ would allow to spread the CPU all across the proccessor allowing me to run it on the RPI 3, but no it's strange the mother patch of the subprocesses is running at 18-20% of CPU use(about 60% on a single core) consuming more than the initial patch that runs at 10-12% of CPU use. And when I'm running the pd subprocesses they also grasp a load of cpu use, They consume about as much as the mother patch, which is quite the opposite of what I wanted...

So is it normal that the use of pd~ just increases the need of CPU time for pd ? Is there another way to split the audio processing in different pd instances s the calculation is shared by different cores ? Is there some things I could improve in the audio processing section that could help lowering the use of CPU ?

Then I have another problem whenever I wanted to activate the dsp when I was on my RPI pure data craches. Is there someone here that knows why ? What command should I use to use the dsp without crash on a rpi ?

If you don't see any solution to my problem then you maybe can help me in an another way? Since my problem is mainly optimisation, if you have some recommandation to gave about some pure data open source groovebox patch that run well on low spec system it would be great.

Yes, I made it work, i have loaded 3 instances of my "1 core limit patch" via pd~ in the 4th "super-process" patch, but it seems like 1 core is still about 100% load. Looks like it is one that does DAC, I run the whole thing at 192khz but it still freezes, but less then before so pd~ does the job.

Automatonism have 4 chanell mixer that does DAC, when i remove it the core that is heavy loaded is dropping the load.

Is there a way to make sure that new pd~ subprocess is "send" to ANOTHER core then "super-process" patch ?

Hi,

I am running Pd .46.2 on a Raspberry Pi. I have two Midi USB devices going into a hub, that then go into the Pi. they are the same devices, but operate on different midi channels, 1 and 2 respectively.

I am trying to use ctlin to get sensor data. from the two midi controllers and I am only getting it from 1. I formatted it like this: [ctlin 1 1] and [ctlin 2 1], only the object for channel 1 is working. Also, in midi settings I selected "use multiple devices" and selected /dev/midi2 and /dev/midi3 as my devices.

In the help file of ctlin I can see that it is recieving data on both midi channels, also when you look at [midiin] I can see the data. But for some reason it's not working when I specify the channel. Also, ctlout isn't working either, same issue.

I am using oss-midi.

Let me know what you think.

@EEight It doesn't work, because it says that "El paquete «puredata» no está instalado", that puredata is not installed... isn't it rare?

anibal@anibal-ubuntu:~$ sudo apt-get purge pd
[sudo] password for anibal: 
Leyendo lista de paquetes... Hecho
Creando árbol de dependencias       
Leyendo la información de estado... Hecho
Nota, seleccionando «puredata-core» en lugar de «pd»
Los paquetes indicados a continuación se instalaron de forma automática y ya no son necesarios.
  libgsl0ldbl ttf-dejavu-core
Utilice «sudo apt autoremove» para eliminarlos.
0 actualizados, 0 nuevos se instalarán, 0 para eliminar y 2 no actualizados.
anibal@anibal-ubuntu:~$ sudo apt-get purge puredata
Leyendo lista de paquetes... Hecho
Creando árbol de dependencias       
Leyendo la información de estado... Hecho
El paquete «puredata» no está instalado, no se eliminará
Los paquetes indicados a continuación se instalaron de forma automática y ya no son necesarios.
  libgsl0ldbl ttf-dejavu-core
Utilice «sudo apt autoremove» para eliminarlos.
0 actualizados, 0 nuevos se instalarán, 0 para eliminar y 2 no actualizados.
anibal@anibal-ubuntu:~$ 

Then I did:

anibal@anibal-ubuntu:~$ sudo apt-get purge puredata-core
Leyendo lista de paquetes... Hecho
Creando árbol de dependencias       
Leyendo la información de estado... Hecho
Los paquetes indicados a continuación se instalaron de forma automática y ya no son necesarios.
  libgsl0ldbl ttf-dejavu-core
Utilice «sudo apt autoremove» para eliminarlos.
Los siguientes paquetes se ELIMINARÁN:
  puredata-core*
0 actualizados, 0 nuevos se instalarán, 1 para eliminar y 2 no actualizados.
Se liberarán 2.680 kB después de esta operación.
¿Desea continuar? [S/n] s
(Leyendo la base de datos ... 242946 ficheros o directorios instalados actualmente.)
Desinstalando puredata-core (0.46.7-3) ...
Purgando ficheros de configuración de puredata-core (0.46.7-3) ...
Procesando disparadores para man-db (2.7.5-1) ...
anibal@anibal-ubuntu:~$ pd
anibal@anibal-ubuntu:~$ 

...and I launched pd fine... The puredata-core corresponded to an earlier installation. Thanks!

@Pierre-Guillot
"make install" does not seem to install anything so I added object files manualy
It compiles but the linker cant seem to find pd stuffs although it is linked with pd...

cc -I"D:/WORK/DSP/pd-0.46-7/src" -Wno-unused-parameter -DPD -DVERSION='"0.0"'  -O6 -funroll-loops -fomit-frame-pointer  -Wall -W -g -o "src/adsr.o" -c "src/adsr.c"
cc   -rdynamic -shared -L"D:/WORK/DSP/pd-0.46-7/src" -L"D:/WORK/DSP/pd-0.46-7/bin" -o "src/adsr.dll" "src/adsr.o"  libCicmWrapper_la-ebox.o libCicmWrapper_la-egraphics.o libCicmWrapper_la-eclass.o libCicmWrapper_la-eobj.o libCicmWrapper_la-ecommon.o libCicmWrapper_la-epopup.o  -lpd  
libCicmWrapper_la-ebox.o: In function `ebox_dosave':
/cygdrive/d/WORK/DSP/CicmWrapper/Sources/ebox.c:819: undefined reference to `s__X'
libCicmWrapper_la-ebox.o: In function `ebox_properties':
/cygdrive/d/WORK/DSP/CicmWrapper/Sources/ebox.c:1098: undefined reference to `s_symbol'
/cygdrive/d/WORK/DSP/CicmWrapper/Sources/ebox.c:1113: undefined reference to `s_symbol'
libCicmWrapper_la-eclass.o: In function `eclass_attr_getter':
/cygdrive/d/WORK/DSP/CicmWrapper/Sources/eclass.c:639: undefined reference to `s_float'
/cygdrive/d/WORK/DSP/CicmWrapper/Sources/eclass.c:653: undefined reference to `s_symbol'
libCicmWrapper_la-eclass.o: In function `eclass_attr_setter':
/cygdrive/d/WORK/DSP/CicmWrapper/Sources/eclass.c:753: undefined reference to `s_float'
/cygdrive/d/WORK/DSP/CicmWrapper/Sources/eclass.c:775: undefined reference to `s_symbol'
libCicmWrapper_la-eclass.o: In function `eclass_addmethod':
/cygdrive/d/WORK/DSP/CicmWrapper/Sources/eclass.c:240: undefined reference to `s_float'
/cygdrive/d/WORK/DSP/CicmWrapper/Sources/eclass.c:252: undefined reference to `s_symbol'

I just installed Ubuntustudio 15.10 Wily Werewolf 32bit on a thinkpad and I am trying to upgrade PD to extend. I am fairly new to linux but it seems like the instructions on https://puredata.info/docs/faq/debian fails.

This is the log from executing the commands. Any suggestions and help will be appreciated

myuser@machine:~$  sudo add-apt-repository "deb http://apt.puredata.info/releases `lsb_release -c | awk '{print $2}'` main"[sudo] password for zoundart:
myuser@machine:~$ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-key 9f0fe587374bbe81
Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --homedir /tmp/tmp.beJyKhm5Lr --no-auto-check-trustdb --trust-model always --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyserver keyserver.ubuntu.com --recv-key 9f0fe587374bbe81
gpg: requesting key 374BBE81 from hkp server keyserver.ubuntu.com
gpg: key 374BBE81: "Hans-Christoph Steiner <hans@guardianproject.info>" not changed
gpg: Total number processed: 1
gpg:              unchanged: 1
myuser@machine:~$ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-key D63D3D09C39F5EEB
Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --homedir /tmp/tmp.BDfXAe3l5j --no-auto-check-trustdb --trust-model always --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyserver keyserver.ubuntu.com --recv-key D63D3D09C39F5EEB
gpg: requesting key C39F5EEB from hkp server keyserver.ubuntu.com
gpg: key C39F5EEB: "Launchpad Pure Data" not changed
gpg: Total number processed: 1
gpg:              unchanged: 1
myuser@machine:~$ sudo apt-get update
Hit http://no.archive.ubuntu.com wily InRelease
Get:1 http://no.archive.ubuntu.com wily-updates InRelease [64,4 kB]                                                               
Get:2 http://no.archive.ubuntu.com wily-backports InRelease [64,5 kB]                                                             
Get:3 http://security.ubuntu.com wily-security InRelease [64,4 kB]                              
Ign http://apt.puredata.info wily InRelease                                                                
Ign http://apt.puredata.info wily Release.gpg                                   
Ign http://apt.puredata.info wily Release                 
Get:4 http://security.ubuntu.com wily-security/main Sources [17,0 kB]     
Get:5 http://no.archive.ubuntu.com wily-updates/main Sources [24,1 kB]                     
Get:6 http://no.archive.ubuntu.com wily-updates/restricted Sources [3 741 B]               
Get:7 http://security.ubuntu.com wily-security/restricted Sources [2 854 B]                
Get:8 http://no.archive.ubuntu.com wily-updates/universe Sources [6 112 B]                 
Get:9 http://no.archive.ubuntu.com wily-updates/multiverse Sources [1 922 B]               
Get:10 http://security.ubuntu.com wily-security/universe Sources [3 691 B]                 
Get:11 http://no.archive.ubuntu.com wily-updates/main i386 Packages [59,3 kB]               
Get:12 http://no.archive.ubuntu.com wily-updates/restricted i386 Packages [13,4 kB]          
Get:13 http://security.ubuntu.com wily-security/multiverse Sources [1 922 B]
Get:14 http://no.archive.ubuntu.com wily-updates/universe i386 Packages [31,0 kB]           
Get:15 http://no.archive.ubuntu.com wily-updates/multiverse i386 Packages [6 052 B]
Get:16 http://security.ubuntu.com wily-security/main i386 Packages [43,4 kB]                 
Err http://apt.puredata.info wily/main i386 Packages                                         
  404  Not Found
Ign http://apt.puredata.info wily/main Translation-en_US             
Get:17 http://no.archive.ubuntu.com wily-backports/main Sources [750 B]
Get:18 http://security.ubuntu.com wily-security/restricted i386 Packages [10,8 kB]          
Get:19 http://no.archive.ubuntu.com wily-backports/restricted Sources [28 B]                 
Ign http://apt.puredata.info wily/main Translation-en                                              
Get:20 http://no.archive.ubuntu.com wily-backports/universe Sources [833 B]
Get:21 http://no.archive.ubuntu.com wily-backports/multiverse Sources [28 B]
Get:22 http://no.archive.ubuntu.com wily-backports/main i386 Packages [606 B]
Get:23 http://security.ubuntu.com wily-security/universe i386 Packages [24,8 kB]
Get:24 http://no.archive.ubuntu.com wily-backports/restricted i386 Packages [28 B]
Get:25 http://no.archive.ubuntu.com wily-backports/universe i386 Packages [714 B]
Get:26 http://security.ubuntu.com wily-security/multiverse i386 Packages [6 052 B]
Get:27 http://no.archive.ubuntu.com wily-backports/multiverse i386 Packages [28 B]
Hit http://no.archive.ubuntu.com wily-backports/multiverse Translation-en
Hit http://no.archive.ubuntu.com wily-backports/restricted Translation-en
Get:28 http://security.ubuntu.com wily-security/main Translation-en [23,2 kB]
Hit http://no.archive.ubuntu.com wily/main Sources               
Hit http://no.archive.ubuntu.com wily/restricted Sources     
Hit http://no.archive.ubuntu.com wily/universe Sources             
Get:29 http://security.ubuntu.com wily-security/multiverse Translation-en [2 536 B]
Hit http://no.archive.ubuntu.com wily/multiverse Sources                               
Hit http://no.archive.ubuntu.com wily/main i386 Packages                                         
Hit http://no.archive.ubuntu.com wily/restricted i386 Packages     
Hit http://no.archive.ubuntu.com wily/universe i386 Packages       
Get:30 http://security.ubuntu.com wily-security/restricted Translation-en [2 666 B]
Hit http://no.archive.ubuntu.com wily/multiverse i386 Packages                             
Hit http://no.archive.ubuntu.com wily/main Translation-en    
Hit http://no.archive.ubuntu.com wily/multiverse Translation-en  
Hit http://no.archive.ubuntu.com wily/restricted Translation-en  
Get:31 http://security.ubuntu.com wily-security/universe Translation-en [15,2 kB]
Hit http://no.archive.ubuntu.com wily/universe Translation-en                       
Hit http://no.archive.ubuntu.com wily-updates/main Translation-en        
Hit http://no.archive.ubuntu.com wily-updates/multiverse Translation-en
Hit http://no.archive.ubuntu.com wily-updates/restricted Translation-en
Hit http://no.archive.ubuntu.com wily-updates/universe Translation-en
Hit http://no.archive.ubuntu.com wily-backports/main Translation-en
Hit http://no.archive.ubuntu.com wily-backports/universe Translation-en
Fetched 496 kB in 7s (70,7 kB/s)                                                                                                  
W: Failed to fetch http://apt.puredata.info/releases/dists/wily/main/binary-i386/Packages  404  Not Found

E: Some index files failed to download. They have been ignored, or old ones used instead.
myuser@machine:~$ sudo apt-get install pd-extended
Reading package lists... Done
Building dependency tree      
Reading state information... Done
Package pd-extended is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'pd-extended' has no installation candidate

@atarikai said:

I know I can target individual mice and keyboards with [hid] but is there a way to keep the linux Xserver from using them as input?

Old thread, I know, but for anyone else who stumbles upon it...

I think what you want is the `xinput` command. First, find out what devices you have:

$ xinput list
⎡ Virtual core pointer                        id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ Logitech USB Trackball                    id=8    [slave  pointer  (2)]
⎜   ↳ Wacom Intuos3 6x8 eraser                  id=9    [slave  pointer  (2)]
⎜   ↳ Wacom Intuos3 6x8 cursor                  id=10   [slave  pointer  (2)]
⎜   ↳ Wacom Intuos3 6x8                         id=11   [slave  pointer  (2)]
⎜   ↳ Logitech USB-PS/2 Optical Mouse           id=12   [slave  pointer  (2)]
⎣ Virtual core keyboard                       id=3    [master keyboard (2)]
    ↳ Virtual core XTEST keyboard                 id=5    [slave  keyboard (3)]
    ↳ Power Button                                id=6    [slave  keyboard (3)]
    ↳ Power Button                                id=7    [slave  keyboard (3)]
    ↳ Unicomp  Endura Keyboard                    id=13   [slave  keyboard (3)]

You can detach the device, preventing it from controlling the X pointer/keyboard, by using `xinput float`, e.g.

$ xinput float "Logitech USB Trackball"

(or use its numeric ID.) The control stream will still come through via HID. In fact, you can use `xinput` to access the control stream as formatted text as well:

$ xinput test "Logitech USB Trackball"
motion a[0]=1176 a[1]=607 
motion a[0]=1177 a[1]=608 
motion a[0]=1177 a[1]=609 
motion a[0]=1177 a[1]=610 
button press   1 
button release 1

The `xidump` command from the Linux Wacom Project can be used in a similar way.

To reattach the floated device and regain control of the X pointer:

$ xinput reattach "Logitech USB Trackball" "Virtual core pointer"

You can detach keyboard devices as well, but watch for the Enter key getting (virtually) stuck!

@epatricio said:

And yet another one, inspired by the first one:

http://puredata.info/Members/epatricio/nanokontrolep.zip/at_download/file

This one has a different GUI and it's capable of retrieve all control positions if you change between scenes. (because the hardware is not capable to do so, but the controls are there...)

Hi Eduardo,

I'm using your nanokontrol-ep_0.56.pd quite extensively (I hope that this is the last one..).
I think I've found a small issue in the way the buttons are handled:
If you look into for example in the "pd botoes1" abstraction (within "pd midicontrols" -> "pd scene1") you see that the midi "control in" message is handled in this way:

[ctlin ]
/ \ / |
[t b] \/
\ / \
[pack f f]
|
[spigot 1]\[r scene1]
|
etc...

(sorry, very bad ascii art), but in this way the "pack" is banged twice. It should be like in the following (as in
http://puredata.hurleur.com/sujet-4271-ctlin-parameter-order-noob-level-issue :

[ctlin ]
| | \
[swap]
| |
[pack f f]
|
[spigot 1]\[r scene1]
|
etc..

Alberto

I'm currently building something with an arduino and pd. Arduino vets- help is appreciated!

So, I'm using [comport] and [convert.ascii2pd] to read inputs from an arduino. I'm not using pduino, firmata, etc. because I'm multiplexing the input.

I have a multiplexer read 8 potentiometers going into 1 analog input on my arduino. So I rapidly read all 8 of the inputs in a loop and print them out over serial.

My problem is I don't know how to take this stream and put it to an array properly. Out of [comport] to [convert.ascii2pd] to printing the results looks like this:

print: 790
print: CR
print: LF
print: 0
print: CR
print: LF
print: 0
print: CR
print: LF
print: 0
print: CR
print: LF
print: 703
print: CR
print: LF
print: 649
print: CR
print: LF
print: 547
print: CR
print: LF
END: bang

I'm seperating the values with special characters, which can be weeded out with [route] if need be. I have the end of each 8 input read banging.

But it's late and my head is reeling. Not sure where to start next in terms of putting these properly in a list or an array. The end goal being that I have 8 potentiometers that can control things in pure data. Any way to make sense of this input?

The things we do for more inputs!

Hello, first post here.

I am working on a video mixer with effects using pdp and pidip. It consists of four parts each running a separate instance of pdextended 0.42.5 each on one core of my quadcore laptop 2.6.38.6 ArchLinux system. When one of the cores, running several video effects on a pdp stream, maxes out to over 90%, I totally lose realtime update of MIDI messages: when I turn a knob on my Vestax VCI-100 MIDI controller, the changes only filter through after sometimes several seconds! I am using the Vestax connected to each instance of PD through ALSA MIDI.
I already tried lowering the latency of PD and Jack: this certainly has an effect but updates are still to scarce.
I did find a solution: receiving the MIDI messages on the least loaded core and sending them through netsend to the loaded core.

Still I would like some solution to this problem or maybe at least an explanation of why this happens?

.gert.