similar to: FFT

I''ve seen http://railscasts.com/episodes/73-complex-forms-part-1, part2 and part3. It seems to be my case. I have: Company has_many :documents has_many :tenders, :through.......... and Document belongs_to :company Tender has_many :companies, :through.......... I want to insert documents and tenerds on company creation. If documents are more than one the user can click "add

I am trying to setup mysql on XEN. I need to set it up on NFS so I can migrate the domain when needed. I am getting unexpected results and wanted to get some feedback. Here is my setup: NFS server Dual 2.0 Ghz AMD Opteron 2GB of RAM Broadcom GB NIC Standard Fedora Core 3 (FC3) Mysql w/tpc-c medium databases on the NFS share XenU filesystem on the NFS share Xen machine

hi there. anyone have any tips on params to pass to the kernel etc in order to install Centos4 or Centos5 32bit or 64 bit installed on this unit i can get it close to install, yet no cigar. it is a tyan MB and ill try to get more info if needed... for this case, please assume for now that the hardware itself is not "bad" thanks in advance... - rh Rackable Systems Dual Opteron 2.0

Hey all, I was planning on getting a new computer for the new year to help with my dissertation research, and recently had an opportunity to compare the performance of my 1.6 GHz Pentium M laptop, and a 2.8 GHz dual-core Pentium processor (both running WinXP professional 32-bit). I run a lot of long simulations, so I was hoping to get something that would speed them up. I ran a few quick

Hi folks, an Asterisk (www.asterisk.org) box will be built with the following specs and I wanted to know if CENTOS has a built process/config/parameter/special distro to target the AMD Opteron Dual Core plataform: 2 amd opteron 265 dual core 1.8 Ghz 2mb l2 cache 2x1024 ocz c2-6400 dual channel gold GX XTC 2 Seagate 16mb cache 300 GB barracuda 7200 drives another 2 Seagate 500 GB 16mb cache

The systems will be operating the Center 5.2 32-bit, below the model, one will doubt that the system of controlling the media to do a RAID 0+1 PowerEdge SC1435 Processor AMD Opteron ? 2344HE Quad Core (1.7 GHz, 4x512 KB L2 cache, 1 GHz HyperTransport) - BRH8835 edit Memory 8GB Memory, 667MHz (4x2GB), Single Ranked Primary controller Integrated SATA Controller - No RAID edit First Hard Drive SAS

Just reporting some iperf results. In each case, Dom0 is iperf server, DomU is iperf client: (1) Dom0: Intel Core2 3.16 GHz, CentOS 5.2, xen 3.0.3. DomU: Windows XP SP3, GPLPV 0.9.12-pre13, file based. Iperf: 1.17 Gbits/sec (2) Dom0: Intel Core2 2.33 GHz, CentOS 5.2, xen 3.0.3. DomU: Windows XP SP3, GPLPV 0.9.12-pre13, file based. Iperf: 725 Mbits/sec (3) Dom0: Intel Core2 2.33 GHz,

Hi! I want to upgrade hardware on my router (iptables, htb, >1000 users). Now it is based on usual desktop PC (Intel Prescott P4 3.00 Ghz, 1 Gb RAM). The reason of hardware upgrade is growing up number of users, also we are planning to increase upstream link from 100 Mbit/s to 1 Gbit/s. Iptables rules are now optimized with ipset tool, for tc I''m using hash tables as well. So I

Hello, I try to synthesize harmonic functions with a subset of frequencies determined by fast fourier transform. I wrote two different functions, a looped version and a matrix multiplication version. As an example the looped version takes 5 sec and the matrix-version takes 3-4 sec (R 1.4, Athlon 1.2 GHz, 256 MB, Win ME), but the latter needs huge amount of memory due to the matrices. So, none of

Chip Clock HT Cache Bus Speed --------------------------------------------------------- 5080 3.7 GHz YES 2MB 1066 MHz 5160 3.0 GHz NO 4MB 1333 MHz Does the .7 GHz and HT worth more then 4MB cache and higher bus speed? The application is VoIP so there is not a lot of IO so I would not think Bus Speed would matter. I am finding mixed information on HT, some say it is great, others say it

We are currently running R under Windows 2000 on a server box running with 2 1.2 GHZ Intel Pentium III Processors. We would like to run this on a new computer running Linux and receive a significant speed increase over our current implementation. Could anyone provide some suggestions for a fast 64 BIT Intel based processor computer with a recommendation for memory and speed/type/number of

Hi all, I'm troubleshooting an ocfs2 performance problem where creating files in a directory containing ~180k files is taking significant time to complete. Sometimes creating an empty file will take >100 seconds to complete. This is a three node cluster. I'm currently running OCFS2 1.2.3-1. Are there any changes in a recent version that may address this issue? What should I look

Jean-Marc Valin wrote: > There is definitely some use for a Neon fixed-point FFT. How much > exactly I'm not sure. Fixed-point is a bit more than just a fall-back Well, we use fixed-point mode by default in Firefox for both Firefox OS and Fennec (Firefox on Android). The reason is that, although there is some NEON-class hardware where float does finally appear to be a little bit

Dear Group I'm still trying to bring many data into R (see older postings). After solving some troubles with the database I do most of the work in MySQL. But still I could be nice to work on some data using R. Therefore I can use a dedicated Server with Gentoo Linux as OS hosting only R. This Server is a nice machine with two CPU and 4GB RAM which should do the job: Dual Intel XEON 3.06 GHz

Hi, I am working on DSP module of Ne10. I see there are fixed-point and floating-point FFT inside Opus. Is fixed-point FFT only a fall back for CPU without VFP? On ARMv7-A and ARMv8-A, benchmark result shows that fixed-point (int32) and floating-point (float32) FFT have similar performance. I guess fixed-point version is not often used on these platforms. Is it worth the effort to NEON-optimize

I have this server I need to put to work. The option I have is to make it work as a small office PBX with SIP users and a Digium E1 Card for PSTN service. 24 SIP users and one E1 card in an Intel 945board (533 Front side bus) with 1GB DDR 533mhz of ram, one Pentium Dual Core 2.66 ghz (FSB 533MHZ) and two 80GB SATA disks. Can the box sustain the load? I can add another 1gb of ram if necessary.

Hello! thank you for your efforts creating R! While preparing the next lessons I found that I had to multiply with 1/length(x) by hand if I want to get the inverse Fouriertransform. The help states it will do it by itself. Version R-0.60.1, Linux Seems to be pretty easy to correct either the fft or :-) the help(fft)! Cu Detlef Detlef Steuer Universitaet Dortmund ///////

Hi everyone, I have profiled Opus on AArch64. I just run opus_demo with some pcm files. Following is time proportion of FFT with different bitrate. Bitrate | Time cost by FFT/iFFT 24kb/s | 15% 48kb/s | 15% 96kb/s | 13% Any comment? I want some data close to real application, any suggestion? Thanks, Phil Wang -------------- next part -------------- An HTML attachment was scrubbed... URL:

I am in the process of dropping the TI DSP lib fft routines into the AEC. Currently, FFTWrap.c uses the USE_SMALLFT and USE_KISS_FFT to select between two packages of FFT routines. ] #ifdef USE_SMALLFT ... #elif defined(USE_KISS_FFT) ... #else #error No other FFT implemented #endif My guess is that every DSP and many other processors will have their own specific FFT and iFFT. What method

Hi R-users: I want to know if there is an easy way to obtain a Fourier Transform form a vector or an array (just like fft does), but with a more density base. I mean, if I have a vector of 512 of length, I want the Fourier Transform to be 1024, or 2048, etc, in length (de u domain). Or should I modify the fft C code to do that? If I want to modify the precision of the fft function, which