Cell Definition and 956 Threads

Cell is a multi-core microprocessor microarchitecture that combines a general-purpose PowerPC core of modest performance with streamlined coprocessing elements which greatly accelerate multimedia and vector processing applications, as well as many other forms of dedicated computation.It was developed by Sony, Toshiba, and IBM, an alliance known as "STI". The architectural design and first implementation were carried out at the STI Design Center in Austin, Texas over a four-year period beginning March 2001 on a budget reported by Sony as approaching US$400 million. Cell is shorthand for Cell Broadband Engine Architecture, commonly abbreviated CBEA in full or Cell BE in part.
The first major commercial application of Cell was in Sony's PlayStation 3 game console, released in 2006. In May 2008, the Cell-based IBM Roadrunner supercomputer became the first TOP500 LINPACK sustained 1.0 petaflops system. Mercury Computer Systems also developed designs based on the Cell.
The Cell architecture includes a memory coherence architecture that emphasizes power efficiency, prioritizes bandwidth over low latency, and favors peak computational throughput over simplicity of program code. For these reasons, Cell is widely regarded as a challenging environment for software development. IBM provides a Linux-based development platform to help developers program for Cell chips.

View More On Wikipedia.org
Recent contents Top users
  1. F

    Problem obtaining I-V characterisation of solar cell

    Hi guys, I am currently doing a university project on the reliability studies of a a-Si thin-film solar cell with specs of 3V@25mA. However, I am stuck at the first step, which requires me to obtain the I-V characterisation curve to derive the parameters of Isc,Voc and Pmax. My lab has a...
  2. F

    How to obtain the I-V characterisation curve of a-Si solar cell?

    How to obtain the I-V characterisation curve of a-Si solar cell?? Hi guys, I am currently doing a university project on the reliability studies of a a-Si thin-film solar cell with specs of 3V@25mA. However, I am stuck at the first step, which requires me to obtain the I-V characterisation...
  3. R

    PC Cell Efficiency: Find Power (in W)

    Homework Statement A photovoltaic cell has area 80 sq cm and efficiency converting energy in the form of sunlight to electricity of 7%. The sun's intensity is 800 W / sq m and the rays are perpendicular to the cell's surface. What power will be produced by this cell (in W)? Take care in...
  4. R

    How Does the Fermi Wave Vector of Sodium Compare to Its Brillouin Zone Boundary?

    Homework Statement Treating Sodium (Na, bcc, a= 4.23 Angstrom) as a free electron metal with a single valence electron per atom, calc. the Fermi wave vector and compare with the distance to the Brillouine zone boundary closest to the origin. The Attempt at a Solution I have obtained...
  5. V

    Calculating Bragg Angle from Unit Cell in Cubic Crystal

    Homework Statement The unit cell in a cubic crystal is 2.74Å. Determine the Bragg angle for reflections from the planes (200), (212) and (-112). [sorry i don't know how to put a bar on top of the numbers] if the x-ray wavelength used is 1.54Å Homework Equations Given Bragg's condition as 2d...
  6. negitron

    Superbooster™ cell phone booster fraud

    Superbooster™ cell phone "booster" fraud The following image is a freeze-frame from the product ad, as found on the parent website of the marketing company who makes and sells the product: http://img33.imageshack.us/img33/2258/superbooster.jpg This is an image of a type of RF-based EAS...
  7. E

    Problem with modeling solar cell voltage distribution

    Hi, Has anyone tried getting the voltage distribution of a biased solar cell with the poisson equation ( (d"V/dx") = (q/e)*(p-n) ) and electron and hole densities equation ( n = Nc*exp(-(Ec-qV-F)/kT) , p = Nv*(exp(Ev-qV-F)/kT) ) where Nc and Nv are the effective density of states, Ec and...
  8. B

    STEM Cell Work: Connecting People Privately

    Hi is there anyone here who does work with stem cells/has done it, who knows places that will do it privately, for any purpose as opposed to just some sicknesses? Maybe someone who could elaborate more on it/who could pm me their contact info or anything? thanks
  9. I

    Schematics of cell phone jammer and small and simple walkie talkie

    I want to make my own small and simple walkie talkie with a range of 2Km or more. I can't find a small and simple schematic of that. I also want to make a cell phone jammer which will also be simple and small. I have a small knowledge and experience about electronics so suggest me a circuit...
  10. Saladsamurai

    Average Cell Phone Bill with Data PlanWhat is Reasonable?

    Hey guys. I am going to finally catch up with technology and get a smart phone of sorts. But I have a dilemma: I have been with Sprint for ~7 years. It is part of a family plan, so it ends up being like $40 / month for my share. I am eligible for an upgrade and could get a Blackberry or...
  11. I

    What came first the cell or the gene?

    Considering the thermodynamic law of entropy it would be considered impossible for a sub-infinite number of genetic combinations to code for a single cell, in light of the massive amounts of early UV radiation. Even considering genes of DNA and RNA allowed to replicate in a lab, the...
  12. B

    Replacing Brain Cells with Artificial Cells: A Solution for Aging and Mutations?

    Could replacing one or more parts of the cell, using artifical and or/biological material for the replacement(s) possibly make it so mutations did not cause aging in a way where the aging from the mutations is permanent except if/when organ replacements are done. Why/why not. if someone answers...
  13. H

    How Does Cancer Affect the Cell Cycle Through Cyclin/Cdks?

    Homework Statement General questions about how cancer affects the cell cycle... 1) Does cancer actually speed up the individual phases of mitosis (prophase, metaphase, anaphase, telophase) ... ie metaphase occurs 100x sooner following prophase in a cancer cell compared to a normal cell...
  14. O

    XRD data: particle size, cell size etc

    I use to do XRD from room temperature to High temperature and then cooling again at room temperature. I see there is constant going to the right for all the peaks and also their intensities are decreasing, also the width of peaks is becoming larger. I would like to interpret those data and also...
  15. S

    How big would a solar power cell need to be

    How big would a solar power cell need to be...to power a 0.5 A load (240v)? How about 1 A?2? 10? 50? Just curious.
  16. Andre

    What are the safety implications of using cell phones while driving?

    A couple of decades ago it was feared that the Dutch economy would slowly smother in the traffic jams. The invention of the cell phone however appeared to have countered that. People just continue doing business by cell phone, while waiting in the traffic jams. I just discovered that cell...
  17. D

    Biology So after a B.Sc in Cell biology

    Hey guys, I am trying to find what type of hospital jobs are suitable for a person who will have a B.Sc in cell microbiology. There are jobs (some have been stated many times in this forum) such as doctor, pharmacist, etc, but are there more? I know that a B.Sc will not get me much in a...
  18. S

    How Does a 0M Copper Ion Concentration Affect Galvanic Cell Voltage?

    Homework Statement I am doing an investigation on the factors that affect the voltage of a galvanic cell (or daniell cell). I have two beakers with zinc and copper strips and zinc sulphate and copper sulphate. How would there be an electrical current produced (significantly lower however) with...
  19. Astronuc

    Airwriting Next Big Thing in Cell Phones?

    This will be the next thing that one is not supposed to while driving. Air Writing: Next Big Thing in Cell Phones? http://news.yahoo.com/s/livescience/20090610/sc_livescience/airwritingnextbigthingincellphones
  20. T

    Why do cell phone ringtones play through television speakers?

    ive noticed several times that when I am watching tv, and my phone rings, that my ringtone will actually play through my tv speakers. does anyone know why that happens?? thanks.
  21. 2

    Quantum Efficiency Mapping setup for solar cell charatcerization

    In order to build a QE measurement system, I want to confirm the following issues: (1) Is collimated light required for QE characterization of the entire solar cell? How "bad" it could be if having Gaussian beam? (2) It seems LBIC is most common for QE mapping. Is it possible to use...
  22. S

    About the epidermial cell of the root hair.

    Anyone one here, knows any link where there will be a diagram of the epidermal cell of the root hair cell? If not, could you please explain to me everything about the epidermal cell of the root hair.
  23. L

    Solve Galvanic Cell Homework with Redox Table

    Homework Statement In a galvanic cell, how do we know which substance is the anode and which is the cathode by using the standard reduction potential chart (redox table)? Ex) Between Cu and Zn, which will donate electrons best...Ex) Pb+2 and Zn+2 which will accept electrons best...I'm really...
  24. T

    Current sensor needed to monitor solar cell while cell is being used.

    I'm working on a project for class. The project requires a certain level of difficulty. The idea: A system that would theoretically monitor the current through EACH solar cell in a Photovoltaic panel to ensure it wasn't shaded or defective.(For those that don't know, when a solar panel is...
  25. C

    Medical Stem Cell based cure for blindness?

    From the UK's Sunday Times:
  26. C

    Understanding Nernst Voltage in Fuel Cells at High Temperatures

    Hello, I'm doing work in Fuel Cells and am having difficulty with a simple issue; the Nernst Voltage (E) is greater than the Standard Potential (EO) The only electrochemical reaction considered is H2 + 0.5O2 --> H2O The Nernst equation for this reaction is E = EO - (RT / 2F) ln (PH2O / (PH2...
  27. A

    Question about Cells and Cell Channels

    Imagine that it is possible to design cells of varying size. A cell is to be designed with a membrane that has a stable number of open channels. To this end, the number of channels must meet the following condition: the standard deviation of the number of open channels shall be no more than...
  28. S

    Where find K-points data of unit cell or laatice structure?

    I am beginning study Crystal structure. I am finding K-points of unit cell each lattice structure. I have to simulation bandgap structure of all lattice structure. Tell me please! Thanks sansab
  29. H

    MATLAB Matlab: Matching Cell and Double Arrays in Cells

    how do i match up values in a cell array with a double array? for example: i have a cell array wordmc with the following values: C1C5 C4C48C279C12526 C13C58C499 C47C479C579 ...(7000 values) i would like to match these values up to another column double of 7000x1 total_table: 2 4...
  30. C

    MATLAB Combining 2 two-dimensional cell arrays in MATLAB

    Hi I'm quite new to MATLAB and I'm stuck on a problem which I think is probably relatively simple. Any help much appreciated! Right, I have 2 cells, both of dimension 51x1 called n_cbc and n_load. Each of the 51 rows in the n_cbc cell contains a 5x1 matrix. Each of the 51 rows in the...
  31. L

    Reaction of the Calcium pump/channel on a cell due to mechanical stimulation?

    Hi, I am trying to write a model that simulates calcium input and output based on the induced strain, strain rate, and frequency of the applied strain. But before I can do that, I am trying to know more about the biophysics of the cell. How does the calcium pump/channel physically react...
  32. D

    What happen's if one cell organelle quits working

    what happen's if one cell organelle quits working how does it affect the cell?
  33. H

    Figuring out the frequency of light using a solar cell

    Hey people, I wanted to try this experiment. My experiment is to shine a light on a solar cell and try to figure out the frequency of the light. I do have some idea on how to do this using energy concepts. E_i+W_n_c=E_f E_i= initial energy in the system (joules) W_n_c= work that...
  34. D

    Why aren't cell potentials multiplied by coefficients?

    Explain why cell potentials are not multiplied by the coefficients in the balanced redox equation. (Use the relationship between delta G and cell potential to do this.) i know that cell potential is an intensive property but i don't know how to explain why you don't multiply the the cell...
  35. E

    Impact of Temperature on Fuel Cell Work Output

    Homework Statement 2 H2(g) + O2(g) 2 H2O(l) K = 1.28e83 As temperature increases, does the maximum amount of work obtained from the fuel cell reaction increase, decrease, or remain the same? Homework Equations 1. G = -RTln(K) 2. dG = dH - tdS 3. w_max = dG The Attempt...
  36. daniel_i_l

    Why are people afraid of cell phone radiation?

    Considering the fact that the standard cell phone frequency range (0.8-2GHz) is less than the atandars Wi-Fi range (2-5GHz), why are people afraid of cell phone radiation and not of wireless networks?
  37. N

    Electric Field and Force in a Cell Membrane

    Homework Statement The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. Assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.31 x 10-6...
  38. J

    Finding Force Needed to Break Cell Bonds to a Surface

    hi, was hoping to find some equations or method to find the force needed to break the bonds of a cell that is attched to a surface. I have the force that the cell is bonded with and therefor the force needed to overcome to detach the cell. however it is the overcoming force i need to find. The...
  39. K

    How Many Diffusion Processes Occur During Pregnancy?

    A baby is born weighing 4kg. It starts its life from a single cell, which then divides into 2 cells, each of those two divide then again, and so on. Use information from the problem above above to calculate how many diffusion process happen in the 9 months of pregnancy. Is this a realistic...
  40. S

    Question: Fuel Cell Thermodynamic Equations

    I'm an undergrad working on fuel cells for a project and I have been using a book to aid me. There are several equations in the book that were not explained properly so I was hoping someone on this forum could help identify how they were derived. The first 2 is related to the pressure within...
  41. D

    What Is the Distance Between Adjacent Atoms in BCC [111] Direction?

    Materials -- unit cell question "In terms of the atomic radius, R, determine the distance between the centers of adjacent atoms for the BCC crystal structure along the [111] direction." I got the answer 4R but it is wrong. I came up with this by assuming that atoms touch each other in the...
  42. Y

    Maximizing Voltage from a Wet Cell Battery

    Homework Statement Describe a wet cell battery and explain its operation? How would would ensure getting maximum voltage. Assume you are only permitted a single cell.The Attempt at a Solution I got the first question, but i don't get how to answer the second question. i know that when a wet...
  43. S

    Medical Are Cell Phones Causing Your Sperm Count to Drop?

    Researchers have found that cell phone signals can alter four essential features of fertile, grade A sperm: 1. Mobility -- How well they move; 2. Viability -- How tough they are; 3. Sperm count -- How many there are; 4. Morphology -- Proper composition. In men who use cell phones, multiple...
  44. F

    Doubling the cell diameter increases the capacitance by what factor?

    1.If I double the diameter of a cell, by what factor does the capacitance of the membrane change? 2. Help! The Attempt at a Solution
  45. S

    Can You Identify These Cell Structures and Their Functions?

    Ok, well there were about 75 questions I had to do. I've done most, but have a lot of blanks. I've checked the internet and my book. But still nothing. It would be great if you could help me :wink: I am currently in Pre-IB Biology in 9th grade. These are not questions that we should be...
  46. S

    Response time of a solar cell to varying light

    I have to do a coursework on this topic. Do you maybe know any useful websites i can use? Well, for my coursework i am going to investigate how the voltage and current from a solar cell varies with distance from a light source- Is it right to say the more far away the cell is from the light...
  47. G

    Optical Switching using Burnt Pockels Cell

    Hi, I'm trying to use a polariser/pockels cell/analyser combination to make a fast optical switch. I have build a Marx bank to control the Pockels cell. The Marx bank delivers -3.5kV with a rise time of ~100ns (could go faster but don't need it to and due to design constraints have left it...
  48. Moonbear

    Cell Phones vs Chatty Passengers in Driving

    While I'm not at all surprised by the results of the study reported in this article with regard to how badly distracted drivers are while on the cell phone, even hands-free, I am a bit surprised it was so much different from having a chatty passenger in the car. I would have thought a passenger...
  49. P

    Volume of HCP unit cell from radius + c/a ratio

    Homework Statement Cobalt has an HCP (hexagonal close packed) crystal structure, an atomic radius of 0.1253 nm and a c/a ratio of 1.623. Compute the volume of the unit cell for cobalt. Homework Equations area of hexagon = apothem*perimeter/2 The Attempt at a Solution calculate 1 of...
  50. A

    How Do You Determine Which Reaction to Flip in a Voltaic Cell?

    Homework Statement A voltaic cell at 25oC consists of Mn/Mn2+ and Cd/Cd2+ half-cells with an initial cell potential of +0.768 V. The [Mn2+] concentration is 0.500 M. Use the Nernst equation to calculate the [Cd2+] concentration in the Cd/Cd2+ half-cell. Cd+2(aq) + 2e- = Cd(s) . . . . . Eo...
Back
Top