Sam and Acme use a simple, pure form of regular expressions. If they
had the counting operations, this would be a trivial task, but to add
them would open the door to the enormous, ill-conceived complexity of
(no longer) regular expressions as the open source community thinks of
them.
Is it
John Barham wrote:
On Tue, Mar 3, 2009 at 3:52 AM, hugo rivera uai...@gmail.com wrote:
I have to launch many tasks running in parallel (~5000) in a
cluster running linux. Each of the task performs some astronomical
calculations and I am not pretty sure if using fork is the best answer
here.
Not all the features adapt as easily.
-rob
Thanks for the advice.
Nevertheless I am in no position to decide what pieces of software the
cluster will run, I just have to deal with what I have, but anyway I
can suggest other possibilities.
2009/3/4, Vincent Schut sc...@sarvision.nl:
John Barham wrote:
On Tue, Mar 3, 2009 at 3:52 AM,
hugo rivera wrote:
Thanks for the advice.
Nevertheless I am in no position to decide what pieces of software the
cluster will run, I just have to deal with what I have, but anyway I
can suggest other possibilities.
Well, depends on how you define 'software the cluster will run'. Do you
mean
hugo rivera wrote:
The cluster has torque installed as the resource manager. I think it
runs of top of pbs (an older project).
As far as I know now I just have to call a qsub command to submit my
jobs on a queue, then the resource manager allocates a processor in
the cluster for my process to
2009/3/4 Rob Pike robp...@gmail.com:
Not all the features adapt as easily.
-rob
By counted repetittion I've always meant just the mentioned, i.e.
{n}
{n,}
{,m}
{n,m}
.
What feature do you have on mind?
Thanks
Ruda
you are right. I was totally confused at the beggining.
Thanks a lot.
2009/3/4, Vincent Schut sc...@sarvision.nl:
hugo rivera wrote:
The cluster has torque installed as the resource manager. I think it
runs of top of pbs (an older project).
As far as I know now I just have to call a qsub
Hello
I am running p9p acme. I open a directory, so in the tag line I have
sth. ending with '/' and in the window I have the list of files in
that directory. Now I go to the tag line and append a name, say 'a',
to the existing path, i.e. now I have there e.g. '/home/ruda/a'. Then
I write Put
Garbage-in, Garbage-out
What does it happen when you
try to link an object file that
does not have main() defined?
And when you try to link a malformed
object file?
In these cases, there is not any
garbage-out for the garbage-in.
There is an error, as expected.
two things: the linker
viewing the source code, i suspect it's an oversight rather than essential
design.
2009/3/4 Rudolf Sykora rudolf.syk...@gmail.com:
Hello
I am running p9p acme. I open a directory, so in the tag line I have
sth. ending with '/' and in the window I have the list of files in
that directory. Now I go to the tag line and append a name, say 'a',
to the existing path, i.e. now I
i reckon this could be classed as a bug.
you can't change a directory window to a file window.
2009/3/4 Rudolf Sykora rudolf.syk...@gmail.com:
Hello
I am running p9p acme. I open a directory, so in the tag line I have
sth. ending with '/' and in the window I have the list of files in
that
Because at the beginning of the put function in exec.c you have:
if(et==nil || et-w==nil || et-w-isdir)
return;
and et-w-isdir is true. But there are workarounds if you want to
save the contents of the window.
Well, I had some text in in-this-way created window and I
So is there a workaround other than 1) make a new window, 2) copy
past the text there 3) save from the new window?
4) New 5) B.
- erik
What about xcpu?
On Wed, Mar 4, 2009 at 12:33 PM, hugo rivera uai...@gmail.com wrote:
you are right. I was totally confused at the beggining.
Thanks a lot.
2009/3/4, Vincent Schut sc...@sarvision.nl:
hugo rivera wrote:
The cluster has torque installed as the resource manager. I think it
2009/3/4 Rudolf Sykora rudolf.syk...@gmail.com:
So is there a workaround other than 1) make a new window, 2) copy
past the text there 3) save from the new window?
The easier solution that comes to my mind now is Edit w filename.
I haven't looked into it, but I think you lost the content of
From earlier in this thread:
Sam and Acme use a simple, pure form of regular expressions. If they
had the counting operations, this would be a trivial task, but to add
them would open the door to the enormous, ill-conceived complexity of
(no longer) regular expressions as the open source
Sam and Acme use a simple, pure form of regular expressions. If they
had the counting operations, this would be a trivial task, but to add
them would open the door to the enormous, ill-conceived complexity of
(no longer) regular expressions as the open source community thinks of
them.
So,
While learning some of acme's basic commands I was also shocked by
this, and I agree with Ruda that executing a Put with a non-existent
file (e.g. '/home/ruda/a' ;-) should save the contents of the window
in that file.
Probably there are other ways to do it, like Edit w /home/ruda/a, but
the ones
this is plan 9. we don't ask if new feature
x would not cause a problem, we ask if x
would make plan 9 a better system.
well, no-one disputes the claim, if you read twice.
i'm
quite sure one would be wrong in assuming
that plan 9's designers did not know about
repetition. i think it
On Wed Mar 4 09:12:08 EST 2009, uai...@gmail.com wrote:
While learning some of acme's basic commands I was also shocked by
this, and I agree with Ruda that executing a Put with a non-existent
file (e.g. '/home/ruda/a' ;-) should save the contents of the window
in that file.
this isn't true.
The result of this discussion basically has been: neither acme nor sam
is suited for the original problem, there is no simple way present in
plan9 allowing you to edit such files with long lines, which are quite
commonly and with justification present in the world. Only Vim, which
was ported
On Wed, Mar 4, 2009 at 2:30 AM, Vincent Schut sc...@sarvision.nl wrote:
hugo rivera wrote:
Now I'm not an
expert, but I don't think you can do threading/forking from one machine to
another (on linux).
You can with bproc, but it's not supported past 2.6.21 or so.
ron
i disagree with your premise that only vim has the vigor to
modify your super special file. all you need is f and f*.
f transforms your source into something easy to edit in acme.
f* transforms it back into the original form. easy peasy.
or, you can write a simple program that edits the
if on the other hand you try to modify the name of a directory
listing frame, the tag line box is not filled. this is a hint
that you're doing something wrong. also there is no Put option.
this is a bigger hint that you're doing something wrong.
You may call it a hint. I noticed the 'Put'
2009/3/4 erik quanstrom quans...@quanstro.net:
if on the other hand you try to modify the name of a directory
listing frame, the tag line box is not filled. this is a hint
that you're doing something wrong. also there is no Put option.
this is a bigger hint that you're doing something wrong.
On Wed, Mar 4, 2009 at 12:43 AM, Anthony Sorace ano...@gmail.com wrote:
i could see this going either way, but from my perspective the linker
did what you told it.
The linker has NOT done what it is supposed to do. From the man page:
These commands load the named files into executable files
On Tue, 2009-03-03 at 23:24 -0600, blstu...@bellsouth.net wrote:
it's interesting that parallel wasn't cool when chips were getting
noticably faster rapidly. perhaps the focus on parallelization
is a sign there aren't any other ideas.
Gotta do something will all the extra transistors.
Isn't it sad being in plan9?! Things should be simple, but not
simpler than that.
I am not sad being in plan9 [sic].
I have used it as my main OS for about eight years and I have used sam
exclusively for ten. During that time I cannot remember ever needing
or wanting repeat counts on regular
But I think that anyone not under the influence of psychedelic
substances that has suffered PCR, will agree we don't want to move in
that direction, and even if small, counting is a step in that
direction.
Your feelings are understandable, given the horror of pcre, but
in this case they are
I still don't get the discussion. This is a research system. People
want something. So implement that feature and see how it goes!
Report when done :-)
ron
On Wed, Mar 4, 2009 at 12:50 AM, erik quanstrom quans...@quanstro.net wrote:
Both AMD and Intel are looking at I/O because it is and will be a limiting
factor when scaling to higher core counts.
i/o starts sucking wind with one core.
that's why we differentiate i/o from everything
else
Is it really so? R. Cox (Regular Expression Matching Can Be Simple And
Fast), I think, shows, that repetition can be first expanded and then
used even by the nice (non-backtracking) algorithms, like this:
e{3} -- eee
e{3,5} -- ?e?
e{3,} -- eee+
where would the problem arise?
The
On Wed, Mar 4, 2009 at 8:52 AM, J.R. Mauro jrm8...@gmail.com wrote:
Now I haven't tested an SSD for performance, but I know they are
better.
Well that I don't understand at all. Is this faith-based performance
measurement? :-)
I have a friend who is doing lots of SSD testing and they're not
That said, I sure would like to have a fusion IO card for venti. From
what my friend is telling me the fusion card would be ideal for venti
-- as long as we keep only the arenas on it.
even better for ken's fs. i would imagine the performance difference
between the fusion i/o card and mass
trying now...
On Mar 3, 2009, at 8:06 AM, Latchesar Ionkov wrote:
You can try /n/sources/contrib/lucho/usbinst9.img.gz.
Just dd it to a USB flash drive and try booting from it.
Thanks,
Lucho
On Sun, Mar 1, 2009 at 11:37 PM, Ben Calvert b...@flyingwalrus.net
wrote:
ya, that would be
ok - this boots and launches into the installer.
I need to back track and free up some disk space, I'll report back
when i've accomplished that
Ben
On Mar 4, 2009, at 10:32 AM, Ben Calvert wrote:
trying now...
On Mar 3, 2009, at 8:06 AM, Latchesar Ionkov wrote:
You can try
that's quite interesting, and i suspect you've discovered a bug.
actually two bugs, maybe. one has to deal with drawing alpha-blended
images, the other with drawing using RGBA32...
the simplest way to trigger the second bug, which may or may not be
related to the first, is to draw using black,
it looks fine on a native plan 9 386 terminal.
- erikattachment: α.png
but it doesn't: the red is drawn as blue, the green switches to pink
in the middle, and blue is drawn as red and cyan...
only the white is alpha-blended correctly.
On Wed, Mar 4, 2009 at 2:32 PM, erik quanstrom quans...@coraid.com wrote:
it looks fine on a native plan 9 386 terminal.
- erik
to see how it should look when drawn correctly use type = ARGB32 and
RGB24 for black's allocimage(). see attached.
the alpha blending still works because when downgrading from
ARGB32-RGB24 (for drawing onto black) the library still takes the
source color from black without issues. the bugs appear
i didn't do a hex dump. it must be displayed differently
outside of plan 9.
- erik
are you saying that you see the correct image but wee see the png
differently? can you convert it to gif instead of png?
On Wed, Mar 4, 2009 at 2:44 PM, erik quanstrom quans...@coraid.com wrote:
i didn't do a hex dump. it must be displayed differently
outside of plan 9.
- erik
this is a picture of what this looks like on my screen.
your attached png is 4 stripes of
white-blue
blue-blue
magenta-blue
cyan-blue
- erikattachment: αpic.jpg
the jpg file you attached doesn't look like a jpg file :(
On Wed, Mar 4, 2009 at 2:53 PM, erik quanstrom quans...@coraid.com wrote:
this is a picture of what this looks like on my screen.
your attached png is 4 stripes of
white-blue
blue-blue
magenta-blue
cyan-blue
- erik
So, the web site's up, program is announced, and so on.
Was anyone planning on doing a Plan 9 application? I'm willing to
help, if anyone was planning on it, or lead, if not. In the later
case, I'd appreciate help (any of advice, materials, or labor) from
people who were involved in our last two
ok, those all exhibit the incorrect blending behaviour, would you not agree?
here's a .jpg that shows the correct behaviour and that should render
properly on Plan9. I just tried RGB24.png and it indeed renders
incorrectly in 9vx the way you're describing it. the jpg should be the
benchmark for
On Wed Mar 4 17:48:12 EST 2009, mirtchov...@gmail.com wrote:
Erik, I think you're running in 32bpp mode, right?
yes. iirc my nvidia card was not willing to do 24bpp.
To have 'png' render RGB24.png correctly make the following change to
/sys/src/cmd/jpg/png.c:
however it won't fix the
however it won't fix the program that you originally
sent.
the fix (if you can call sidestepping the problem :a fix) for the
original program is to use RGB24 as the channel for black's
allocimage():
black = allocimage(display, Rect(0, 0, Dx(screen-r),
Dy(screen-r)), RGB24, 0, DBlack);
On Thu, Mar 5, 2009 at 10:31 AM, maht mattmob...@proweb.co.uk wrote:
I decided to try some draw(2) exploration and I'm not getting what I
expected from alpha blending.
If I apply alpha to RGB24 images they change as expected but if I use RGBA32
images and try to apply alpha it's going weird
from 32-bit image to a 32-bit display.
a 32-bit display? what's the result of cat /dev/draw/new?
On Wed Mar 4 18:42:46 EST 2009, fors...@terzarima.net wrote:
from 32-bit image to a 32-bit display.
a 32-bit display? what's the result of cat /dev/draw/new?
1: !cat /dev/draw/new
9 0x8r8g8b8 0 0 0
16001200 0
in the case of 9vx running on Linux it's x8r8g8b8, drawterm on osx is
also x8r8g8b8.
here's how it breaks down drawing to display:
sourcedestination error
XRGB32 XRGB32 no
XBGR32 XRGB32 no
ARGB32 XRGB32 yes (see
just for fun, the attached file should run the whole gamut of
allocimage chan options in the 32-bit range (with RGB24 thrown in for
good measure) and will create files in /tmp for each possible
combination without involving drawing to the screen display (ideally
this should be done in memdraw, i
xgbr32 over xgbr32 or xrgb32 looks fine.
but xgbr32 over agbr32, for example,
results in a fade-to-blue and an extremely
slow display time. seems like the channels
are getting mixed up.
oddly, xrgb32 over argb32 works (but slowly).
- erik
On Wed, Mar 4, 2009 at 12:14 PM, ron minnich rminn...@gmail.com wrote:
On Wed, Mar 4, 2009 at 8:52 AM, J.R. Mauro jrm8...@gmail.com wrote:
Now I haven't tested an SSD for performance, but I know they are
better.
Well that I don't understand at all. Is this faith-based performance
On Wed, Mar 04, 2009 at 10:32:55PM -0500, J.R. Mauro wrote:
What types of things degrade their performance? I'm interested in
seeing other data than the handful of benchmarks I've seen. I imagine
writes would be the culprit since you have to erase a whole block
first?
Being full.
2008/11/24 Russ Cox r...@swtch.com:
How do I mount my p9p plumber on to my 9vx session?
% ls /mnt/plumb
% bind '#Z' /mnt/term
% ls /mnt/term/tmp/ns.rsc*
/mnt/term/tmp/ns.rsc.wreck/acme
/mnt/term/tmp/ns.rsc.wreck/plumb
% mount /mnt/term/tmp/ns.rsc.wreck/plumb /mnt/plumb
% ls /mnt/plumb
Well, I asked about GSoC 2009 some weeks ago and I got no reply here.
I certainly would like to apply as a student, but I am no sure if I
qualify (in one hand I am kind of a student, and on the other I
probably need to learn a lot more about plan 9).
In any case, I would like to see how this
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