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Keith O'Conor wrote: > Hi, > I'm trying to figure out the best way to sort a large amount > (thousands) of floats or fixed-point data on an FPGA. With this amount > of data, it needs to be stored in RAM because it obviously won't fit in > registers, but this means that there can only be one access to that RAM > every clock cycle. Since any sorting algorithm will need access to at > least two pieces of data to compare, I can't figure out how to > parallelize the sorting. Has anyone got any experience in this area? I > would really appreciate any advice. > > Thanks, > Keith One simple solution would be to use a dual port RAM. Another solution is to use two different RAM blocks for each data set. Cheers PeteSArticle: 95001
I was aware that there is a flag which can disenable Design Compiler to write Assign statement. My NCVerilog gave me warning on Assign statement when performing gate level simulations. Many thanks in advance.Article: 95002
On a sunny day (Fri, 20 Jan 2006 10:53:31 +1300) it happened Jim Granville <no.spam@designtools.co.nz> wrote in <43d00a4b@clear.net.nz>: >Peter Alfke wrote: >> Rickman, why do you ask? >> Everybody in this newsgroup hates that method, but Xilinx Marketing >> thinks that it is a more meaningful metric when comparing different >> manufacturer's devices. And it is, like it or not. > >How about you try and introduce the meaning of UNITS to them ? > >ie let them use LCeq for the marketing DOCS, and also have an absolute, >physical count, of LC = X * Y on the die. > >As a radical idea, they could even publish the formula >LCeq = LCactual * MarketingsIdeaOfLevelPlayingFieldFactor > > >That way, everyone is happy :) > >The problems occur when one dept trys to use a std unit, >but hijack it to mean something else. In the end no one knows >where they are.... and everyone is annoyed. > How about 'feel gates'? After all my 10W PC speakers are 1000 'music watts'. And this FPGA has a 10 giga gates equivalent feel power? A. Nonymous.Article: 95003
Bryan Hackney wrote: > Simon Peacock wrote: > > sooner or later the system will reach balance.. we will all earn less... and > > therefore eat less Big Macs.. so weigh less... then we will all get paid > > less too and spend less ... > > > > There will be no balance. > > Europe is declining. Why do you think that? > Africa and the Middle East will never go anywhere. Why do you think that? > The US is starting a European style decline, derived from liberal self > loathing and guilt. Giggle. > Japan has show its weakness of character, and complete lack of creativity > in solving its money problems the last decade. I wonder if there is a > single original idea in China. Russia is overrun with corruption. As opposed to the U.S. ruling (Repulbican) party which is sea-green incorruptible, so much so that even your courts have noticed. > India - well, I don't know much about India. Your ignorance is more extensive than you think. > Call me an optimist. Maybe we can have a renaissance in the west. I hope > so. I'd call you pompous twit. We had a renaissance in the west some six hundred years ago. It's still running - rather bumpily, and better in some areas than others - but we still keep on doing better in one area after another. -- Bill Sloman, NijmegenArticle: 95004
Keith O'Conor wrote: > Hi, > I'm trying to figure out the best way to sort a large amount > (thousands) of floats or fixed-point data on an FPGA. With this amount > of data, it needs to be stored in RAM because it obviously won't fit in > registers, but this means that there can only be one access to that RAM > every clock cycle. Since any sorting algorithm will need access to at > least two pieces of data to compare, I can't figure out how to > parallelize the sorting. Has anyone got any experience in this area? I > would really appreciate any advice. > > Thanks, > Keith > Sorting floats is no different than sorting fixed point, that is the reason for using excess code N for the exponent. To accomplish the sort efficiently, you partition the data, storing and the sorting subsets of the full data set on the FPGA and then merging the results. That way you don't have as many accesses to the off-chip ram to deal with.Article: 95005
yusufilker@gmail.com wrote: > Eastern cultures are generally more fatalist(I do not know this word > describes what i mean), more contented with what they have.Unless you > awake them by an atomic bomb. Careful how you say this - remember, our (US) current government is running out of ideas on how to convince people we are "winning" a "war".Article: 95006
Hi, I'm considering a VirtexIIPro device for a security sensitive application. This device offers bitstream encryption. I'm am worried about what parts of it are accessable after the bitstream has been loaded, eg through the JTAG interface. Can any of the FPGA state or RAM cells be read, written or verified? Can the PPC405 component be put into DEBUG mode, and instructions be read or injected? Can an attacker start a partial reconfiguration with a non-encrypted chosen bitstream, to modify the device configuration in a promising way? Eg can he overwrite the BRAM interface cells to dump RAM contents to I/O pins, etc? Kind regards, MarcArticle: 95007
> The current US administration seems to be > obsessed with investing in military adventures, while places like India have > decided to invest in educating their people - which investment do you think > will pay off better in 20 years? It's all a matter of priorities. It is no secrete that the US, both the mass populace and the government administrations put far too little emphasis on education and this is causing a declining society. There is no way that as a society that the people will be able to compete with anybody when they have the highest illiteracy rate of the industrialized world. I grew up near a major city that has one of the highest crime rates, highest poverty rates, very low coverage of health care, some of the worst schools in the nation but yet the city spends billions per year on constructing new sports stadiums and entertainment districts. Another thing that is absolutely amazing to me that so many people in the US are without health care coverage, yet nothing is being done about it. By no means do I believe in giving a handout to the able bodied who are just too lazy to get off their butts, but there are still certain basic things that should be available to those who need it and can't afford it. These are just two examples of the priority problems in a society where a D- student can make a fortune running around with a damned ball but the honor student who studies hard can earn a median salary that is barely livable. As far as passing on knowledge, become a teacher and you will earn a salary that is almost poverty level. The US, both its people and its government need a serious change in priorities and in attitude.Article: 95008
On 19 Jan 2006 06:45:09 GMT, ptkwt@aracnet.com (Phil Tomson) wrote: >>>Also, just like the Java VM doesn't care what >>>underlying architecture it's running on, this sort of thing could potentially >>>make it easier to port designs between FPGA families... >> >>But no easier than behavioural VHDL code, in my opinion. > >True. The only gains might come when describing memories and other larger >blocks which tend to be different from family to family... but there are other >easier ways of 'genericisizing' those things too. Indeed. Any such block should have a completely generic entity, preferably with a generic architecture, which will at least work for simulation. If that synthesises down to a million FFs instead of a BRAM, you can always substitute architecture X or A as appropriate. With configurations, if the tools support them properly. - BrianArticle: 95009
On 19 Jan 2006 22:29:21 -0800, fpga_toys@yahoo.com wrote:
[snip]
>Even in the US, with the median mortgage well over a half million $$s
>in silicon
>valley we find good professionals rapidly going broke and leaving the
>area for
>lower paying jobs in the midwest, and suddenly being able to afford a
>6,000sqft
>new home, on 35 acres, with a boat, RV, horses for the kids, and
>actually have
>money in the bank to take real vacations with each year .... fewer
>heart attacks
>from worry about loosing everything in the next down turn.
>
>http://www.newhomes.com/homedetail.jsp?regionid=1374&homeid=31352&siteid=1
>
>Compare that to a $250,000 home in east Palo Alto or Oakland.
They're all moving to Arizona and driving the prices up :-(
...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |
It's what you learn, after you know it all, that counts.
Article: 95010
On 20 Jan 2006 05:44:00 -0800, "Noway2" <no_spam_me2@hotmail.com>
wrote:
[snip]
>
>These are just two examples of the priority problems in a society where
>a D- student can make a fortune running around with a damned ball but
>the honor student who studies hard can earn a median salary that is
>barely livable. As far as passing on knowledge, become a teacher and
>you will earn a salary that is almost poverty level.
>
>The US, both its people and its government need a serious change in
>priorities and in attitude.
It's all about market. Do you go to the ball games? I don't. If no
one attended the games guess what the salaries would be.
...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |
It's what you learn, after you know it all, that counts.
Article: 95011bill.sloman@ieee.org wrote: > Bryan Hackney wrote: > >>Simon Peacock wrote: >> >>>sooner or later the system will reach balance.. we will all earn less... and >>>therefore eat less Big Macs.. so weigh less... then we will all get paid >>>less too and spend less ... >>> >> >>There will be no balance. >> >>Europe is declining. > > > Why do you think that? > You're joking, right? You can start with an unsustainable social support model, declining productivity (30 hour week), declining native population, increasing illiterate immigrant population. > >>Africa and the Middle East will never go anywhere. > > > Why do you think that? > And, um, what has Africa ever contributed to the world? What has the Middle East contributed lately (excluding oil)? [...] > > I'd call you pompous twit. We had a renaissance in the west some six > hundred years ago. It's still running - rather bumpily, and better in > some areas than others - but we still keep on doing better in one area > after another. > Whatever keeps you going.Article: 95012
larwe wrote: > yusufilker@gmail.com wrote: > > >>Eastern cultures are generally more fatalist(I do not know this word >>describes what i mean), more contented with what they have.Unless you >>awake them by an atomic bomb. > > > Careful how you say this - remember, our (US) current government is > running out of ideas on how to convince people we are "winning" a > "war". > Realistic suggestions on how to proceed into the next century welcome. Suicide by paralysis is not an option for many people.Article: 95013
Bryan Hackney wrote: > bill.sloman@ieee.org wrote: > > Bryan Hackney wrote: > > > >>Europe is declining. > > > > Why do you think that? > ............................... > declining productivity (30 hour week) Where do you get the idea Europeans work a 30 hr week ? Another rabid right wing bags of lies publication ? GrahamArticle: 95014
Same thing could have been said at most any age: (2000 BC) "Those guys over the next hill are willing to chip rocks into spearpoints for three berries a day! Are we in danger of giving away our advanced chipping technology! We're doomed! (1400 AD) That Gutenberg is going to drive all our scribes into starvation! (1950) Those darned transistors are going to impoverish all those old ladies in hairnets hand winding grid wires! (1970) All those IC's are going to impoverish all those miniskirted young ladies stuffing resistors into TV PC boards! -------------------------- In case you don't get the drift-- change is continuous, temporarily painful, but impels you to MOVE AHEAD, from chipping rocks, hand scibing, hand-winding grids, hand-stuffing PC boards, etc.....Article: 95015
I think the interesting thing in all of this is that the predominate language still used is English. I think that speaks volumes to the future of the industries. Until we have to start learning Mandarin or Hindi, we're in good shape. However, you may want to start brushing up on your character recognition and Bali-wood films now, because you KNOW your customer base will also shift to where the money is going (India, China, everywhere else where the new engineers are be educated and STAYING). See ya!Article: 95016
I have been to two ball games in my 34 years. The first time was when I was 8 years old and it was part of a cub scouts group. The second time, I was in high school and had a friend who was living with a multi-millionaire who took us to a game and we sat in his loge, which was probably a once in a life time experience. Other than that, I may be known to watch a Carolina Panthers game once in a while but thats about it. You certainly are correct though about it being a market issue. The same goes for any form of entertainment.Article: 95017
Pooh Bear wrote: > > Bryan Hackney wrote: > > >>bill.sloman@ieee.org wrote: >> >>>Bryan Hackney wrote: >>> >>> >>>>Europe is declining. >>> >>>Why do you think that? >> >>............................... >>declining productivity (30 hour week) > > > Where do you get the idea Europeans work a 30 hr week ? > > Another rabid right wing bags of lies publication ? > > Graham > http://www.cbsnews.com/stories/2005/03/22/world/main682341.shtml 35 then. Excuse me.Article: 95018
In article <H77Af.7915$1J1.2928@tornado.texas.rr.com>, Bryan Hackney <no@body.home> writes: |> You're joking, right? You can start with an unsustainable social |> support model, declining productivity (30 hour week), declining |> native population, increasing illiterate immigrant population. 30-hour week? Where did you get that from... While we (in Germany) might have had some union-motivated experiments with the 35-hour week two decades ago, the usual contracts were 38,5- to 40-hour week. This dramatically changed during the last couple of years, so that you might get a 30-hour *salary* but work at least 42 hours, not including mandatory (and unpaid) overtime of course. The happy ones still have old 38,5-hour contracts, but even as a civil servant you will have at least 41-hour weeks these days. RainerArticle: 95019
Bryan Hackney wrote: > And, um, what has Africa ever contributed to the world? No idea?Article: 95020
"Bryan Hackney" <no@body.home> wrote in message news:It7Af.7917$1J1.7074@tornado.texas.rr.com... > http://www.cbsnews.com/stories/2005/03/22/world/main682341.shtml > > 35 then. Excuse me. And they dropped it. Most countries in europe have a 38 to 40 hour work week. MeindertArticle: 95021
"Lanarcam" <lanarcam1@yahoo.fr> wrote in message news:1137771805.545861.31220@g49g2000cwa.googlegroups.com... > > Bryan Hackney wrote: > > And, um, what has Africa ever contributed to the world? > > No idea? You mean more than half the population of his own country ? :-) MeindertArticle: 95022
Dear i am exercising a basic flow of partial configuration from xapp290.pdf In the example (verilog), bm_4b_v2 component is used. Problem is that I do not know VHDL component of Bus Macro for Virtex II pro. It will be nice if someone tell me name of component of Bus Macro and how to instantiate it . Thankyou in advanceArticle: 95023
On Fri, 20 Jan 2006 09:51:51 +0000, Paul Burke <paul@scazon.com> wrote: >Phil Tomson wrote: > >> As far as wages go: yes, the disparity is a problem. We in the US (and >> Europe) have environmental, labor laws, ...they will also be able >> to afford to desire a cleaner environment and safer workplaces... A falling >> standard of living, which to some extent we're already seeing (corporations >> defaulting on pension obligations, less people with health insurance, lower >> 'real' wages, record debt). . > >All this discussion of Eastern competition and no mention of capitalism. >It's what the capitalist system always does, always SAYS it does. It >will always chase the cheapest workforce and the cheapest supplies, like >it did in Northern England and South Wales in the 1800s, the sweatshops >of New York in the 1880s, Japan and Hong Kong on the 1950s and 60s, >Korea in the 80s, Malaysia, India, China.. it just sloshes about. Two >choices: think up another system or stop whinging. > In the sense that capitalism spreads wealth from the richest to the poorest parts of the world, it's profoundly liberal. JohnArticle: 95024
"Lanarcam" <lanarcam1@yahoo.fr> wrote in message news:1137771805.545861.31220@g49g2000cwa.googlegroups.com... > > Bryan Hackney wrote: >> And, um, what has Africa ever contributed to the world? > > No idea? Homo Sapiens? Supposedly the first man or woman came from there. -- Siol ------------------------------------------------ Rather than a heartless beep Or a rude error message, See these simple words: "File not found."
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Compare FPGA features and resources
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