similar to: [LLVMdev] Evaluatin llvm for an application

Yeah, this is the right place, just ask :) On Tue, Jan 26, 2010 at 4:12 PM, Maurizio De Cecco <jmax at dececco.name> wrote: > Hallo, > > i am evaluating the possibility of using llvm for an application, > and i wondering if this is the right place where to pose questions. > I haven't found a llvm users mailing list ... > > Maurizio De Cecco

I have been looking for a while to LLVM as a possible technology to build a DSP execution engine, providing the runtime flexibility needed by real-time interactive DSP applications (like patcher languages), or by plug-in based processors, and in the same moment the powerful link time optimizations that such a system can provide. Such a task is daunting for a single developer project like

On Mon, Dec 6, 2010 at 6:10 AM, Maurizio De Cecco <jmax at dececco.name> wrote: > I have been looking for a while to  LLVM as a possible technology to build a > DSP execution engine, providing the runtime flexibility needed by real-time > interactive DSP applications (like patcher languages), or by plug-in based > processors, and in the same moment > the powerful link time

Hi, and thanks for the feedback. >My own gut feeling on this is that you'd be better off figuring out >how to do this in the context of Faust, which already does a important >subset of what you are describing, though notably without (I think) >the LLVM part. Surely a contribution to the discussion by the Faust people would be welcome; and even more than to the discussion :->.

I'm doing convolutions in the frequency domain and need to know the layout of the Fourier modes returned by fft. (This is leading up to a more involved question about moment generating functions, but I need to know if I've got this part correct first.) I think in 1D the pattern is: 0 1 2 3 -2 1 (even) 0 1 2 3 -3 2 1 (odd) In 2D is it simply (for a square matrix): 0 1 2 -1 (horizontal)

Hi Wonsun, can you please provide a testcase. Best wishes, Duncan. > I've noticed that LLVM does a bad job of optimizing array indexing > code for FORTRAN arrays declared using the ALLOCATABLE keyword. > > For example if you have something like the following: > > DOUBLE PRECISION,ALLOCATABLE,DIMENSION(:,:,:,:) :: QAV > ... > ALLOCATE( QAV(

I've noticed that LLVM does a bad job of optimizing array indexing code for FORTRAN arrays declared using the ALLOCATABLE keyword. For example if you have something like the following: DOUBLE PRECISION,ALLOCATABLE,DIMENSION(:,:,:,:) :: QAV ... ALLOCATE( QAV( -2:IMAX+2,-2:JMAX+2,-2:KMAX+2,ND) ) ... DO L = 1, 5 DO K = K1, K2 DO J = J1, J2 DO I = I1, I2 II = I +

Hi Peter, > Why not do this too? I've applied this - thanks for the patch! Ciao, Duncan.

Hi Petr, Many thanks for your response. Basically I want to create a probability matrix to be used in a trinomial tree going forward. This is the reason why I thought to build the matrix around 0 would be much more efficient. I need to loop through because the probabilities will depend on my node and is not always the same per row (e.g. if N> jmax, jmax being defined in another function) I

Hi Well, I am not an expert in this field so I cannot comment your approach. I wanted only to point out that building matrix your way is like scratching your left ear with right hand, especially in R. What if you want increase size of your matrix? E.g. you use function ProbUP once for row "0" and than for rows different from jmax (if I correctly understand your code). Use of any

I want to populate the matrix prb through the function HWMProb <- function (a,j,dt) that encapsulates different functions (please see code below), using j= 0:2 for each j. It only populates prb if I specify each function independently in the global environment and then run the loop with the iF statement, as per below. for (j in 0:2) { if (j==0) { prb["0","1"] <-

Duncan, Do a quick check here on x86_64-apple-darwin10 with svn llvm and svn dragon-egg against release gcc 4.5.0, the results from the himenoBMTxpa benchmark compiled at -O3 look pretty good. With stock gcc-4.5.0, we get... Grid-size = M mimax = 128 mjmax = 128 mkmax = 256 imax = 127 jmax = 127 kmax =255 Start rehearsal measurement process. Measure the performance in 3 times. MFLOPS:

Hi Eric I did not see any answer and frankly speaking I cannot provide you with canned help. AFAIK if a function is defined within another function (which is your case) it cannot be called directly so it is necessary to define it in global environment. > fff <- function(x) { + myf <- function(a) a+2 + myf(x)^2} > > fff(5) [1] 49 > myf(5) Error in myf(5) : could not find

Hello Please I need to add "Maurizio" to this MSSQL DB, but I don't now how to add this step in my opinion I'think that the user can't be found, so I will have the "unknown user" Can give here any little help to fix this? Feb 8 12:09:56 caloro dovecot: auth: Debug: auth client connected (pid=13300) Feb 8 12:09:56 caloro dovecot: auth: Debug: client

Hi all, I am using virtual domains/ virtual users which are stored on MySQL. When I telnet to port 110 (dovecot/POP3) after I enter correct user/pass I always get: telnet 10.9.0.80 110 Trying 10.9.0.80... Connected to 10.9.0.80. Escape character is '^]'. +OK Dovecot ready. USER maurizio at example.com +OK PASS mypass -ERR [IN-USE] Internal login failure. Refer to server log for more

Linux caloro.ch 3.16.0-4-amd64 #1 SMP Debian 3.16.39-1 (2016-12-30) x86_64 GNU/Linux Apt-get install postfix dovecot Adduser -m maurizio Add config steps to dovecot.conf, main.cf, master.cf Email from CLI running, but if connect from Outlook or Thunderbird I have this error, I think that maurizio this user aren?t opened correct on this sqldb? root at caloro:/home/maurizio# postconf -n

Dear R-listers, what is the best way to draw an XY scatterplot with symbol size proportional to the value taken on by a third variable? Thank you very much for any help, Maurizio Pisati

Setup that I was on mind is a little different, but I think your setup works well. In my setup the HUB is connected directly to the UPS, then the cables go to raspberry and device. In your setup the HUB is connected directly to the raspberry, then the cables go to UPS and Device. It?s Ok? In both configurations I need the same things: Male B->female A adaptor, HUB and 2 male A->

I am trying to put some DOS clients to access a samba server. I try to use the Microsoft Network Client 3.0 and the Microsoft Lan Manager. With them I can log into the samba server, and use the conection as normal. But when i use it with a high data transfer, somebody, the client or the samba server disconnect. Somebody have any experience with dos clients? Thank you in advance Maurizio Faccio

Hi. A mongrel/rails installation (proxyed through apache) is crashing for some reason with the following error found in the mongrel.log: ERROR: meta.c (179): wmf_header_read: this isn''t a wmf file /root/local/radiant/config/../vendor/rails/activerecord/lib/active_record/base.rb:2068: [BUG] Segmentation fault ruby 1.8.4 (2005-12-24) [i386-linux] Fedora 5 mongrel: 0.3.13.3 Apache/2.2.0