Memory Definition and 320 Threads

Welcome all, I have a following code: program aaaa implicit none double precision, dimension(:), allocatable :: inp,outp integer ::n,i read(*,*) n allocate(inp(n),outp(n)) write(*,*) allocated(inp), allocated(outp) write(*,*) inp(1) inp=cshift(outp,-size(outp)/2)...

I'm trying to plug up a memory leak in a simple C program that multiplies two matrices together. I've profiled my code with valgrind, and it reports leaked memory from within this function: int ** AllocateMatrix(int size) { int i = 0; int *contiguousMemory = (int*)...

hi every one , i am new in data structure course i need help in this : Struct Person { Char name[20]; int id; float gpa; }; Person student[5]; Compute the addresses of all the elements of array student and show a memory layout for the array if the address of the first...

A is pretty large (and sparse). I'd really like to be able to calculate this, using less RAM.

Knowing a poem by heart often seems to make it special, something that can come to mind when I'm alone walking in the parkland hills near the house, something to repeat aloud for no reason besides itself. The poems in this thread are (by open invitation to others as well) typed from memory...

What are the basic elements in embedded systems? Can I use any microcontrollers, DSPs, and microprocessors in one systems. If yes, how is memory element linked with microcontrollers, DSPs, and microprocessors? On whose memory elements, codes are written? Which language is preferred for the codes?

Time Required to find an item stored in memory can be reduced considerably if stored data can be identified for access by content of data rather than by an address please explain me how...?

Why is cache faster than ram and ram faster than hard disk...?

The Sandy Bridge only has dual channel RAM, which is why the Nehalem pulls ahead in memory-intensive applications and benchmarks. Will the Ivy Bridge include triple-channel memory? The Ivy Bridge is a 22nm die shrink of the Sandy Bridge. And when will the 8-core chips from AMD and Intel be...

"suppose there is an instruction to copy one register contents to another... now, without paging only 1 memory reference is required to fetch the instruction...but with paging..we need 3 memory reference (as page tables are to be accesed)..." please explain why 3...?

let us suppose we use the worst fit algorithm for allocating memory...initaially when whole of the memory is available...then it allocates full memory to one single process...hence no multiprogramming possible...hence what are the advantages of this algorithm...over first fit and best fit... Thanks

My daughter's computer has a 280 GB hard drive. I looked at it and it seemed to be using about 29 GB, but she's getting a pop up that says it's low on memory and has less than 0.5 GB left. I went through and deleted some programs she wasn't using. Got it down to about 26 GB so at least the...

Hello, I am am confused about how fortran code is being executed and how are the variables in the memory updated during the execution. My code in simple terms looks like this: give some values to a matrix psi(lx,ly) (initialization) main loop do n=1,nend nt=psi^3 make Fourier...

Hi all, I'm a home brewer and microbiologist by training, so I have taken a fair amount of physics and chemistry (wasn't sure if gas laws were more physics or chemistry related, so hopefully this is in the right section) but my memory of dealing with gases is not the clearest, so I'd like some...

Hi, I have a rather large matrix A, and I need to find the eigenvalues of A*A^T. The problem is, when I type this in MATLAB I get a memory error. I am physically limited to 3GB so I'm now searching for mathematical tricks to find this without performing the full calculation. I've...

I am a physics student new to the world of electronics and I have a question that may turn out to be very simple. What I am trying to design requires that a single output given some input be held in memory for a specified time despite any differing input being sent through during that time...

Homework Statement In this lab, we are supposed to design and build a multi-page schematic for the operation of an 4-bit arithmetic logic unit (ALU) capable of performing addition (ADD), negation (NOT), and bitwise AND (using Mutlimedia Logic). You will then build a memory with four lines...

Hi Please have a look on the following linked scanned page: http://img408.imageshack.us/img408/8782/page102cx.jpg Please remember that I'm neither a comp. science student nor of science in general. So, please keep you reply as simple and to the point as possible. Suppose I have the USB...

I am looking at the paper "The uncertainty principle in the presence of quantum memory" by Berta and others. It states that if Bob maximally entangles a particle P with a quantum memory M then he can beat the bound of the uncertainty principle on P. The argument is that, if Bob gives P to...

Problem : 20% of memory chips made in a certain plant are defective.Find the probability that in a lot of 100 randomly chosen for inspection i) atmost 15 are defective ii) excatly 15 are defective. Obtain these probability using normal approximation of binomial probabilities. Solution...

http://www.nytimes.com/2009/04/06/health/research/06brain.html" The article is a little dated, but interesting, I had never read it till now. A friend sent me info on Andre Fenton's work...

Hello people, I am so embarassed to share my weakness though I have to. Actually it's about my memory. I have so volatile memory. For example(this is real) I keep bios passwor at my computer. So its usual I have to type bios password to enter my windows. But I have encountered many times that...

stole memory card from my camera?? I've been working tech support at a conference all weekend. I went to use my camera this morning and found the SD card missing. I know that, when I took 50 pix the day before the conference, the card was in there (I would not have been able to take pix...

Hello, I have a problem with my code, it uses too much memory. Aside from optimisation of the code (which I am constantly working on), how can I increase the memory which is available to MATLAB? >> memory Maximum possible array: 435 MB (4.564e+008 bytes) * Memory available...

Hello, I think i heard somewhere that a multidimensional array in fortran 90 may be stored non-contiguously in memory. Is this true? Even if it the size was known at compile time? If your answer is it depends on a compiler, what about ifort and gfortran?

Dear colleagues My code in Fortran passes all data in one large vector. I increased the size of this vector for the maximum that the compiler accepts but still need more positions allocable to it. Is there any way I can increase the memory allocation of the compiler? Thank's

So it seems they have 16 GB devices. So that's 16 billion bytes probably on some storage element no bigger than a postage stamp and very thin. So that's what 128 billion bits? So does that mean we have a single memory device, postage-stamp size, with 128 billion transistors? How exactly is...

I was playing around with C to try to discover how it assigns memory, so I wrote this: int test1; int test2; char test3; int* ptr=malloc(3*sizeof(int)); printf("address of dynamic memory: %p", ptr); printf("address of a pointer: %p", &ptr); printf("address of an integer: %p", &test1)...

I've read the (a?) MATLAB file on memory on their webiste. Basically, their advice deals with data generation, which I'm not having a problem with. I generated the data sets quite easily on my 64-bit dual core, while simultaneously posting on physicsforums and playing muds. But once I got the...

Can you guys please show me how to calculate with details ? I have no clue how to do it, and where to start ? I'm an international student and I really don't understand. Thank you. 1. Suppose that we have a memory system with 16-bit cells of memory. If we use sign/magnitude notation to...

Is there any special technique for committing maths to long-term memory? I'm able to do well in exams by repeatedly going over course content, but tend to forget it pretty quickly. Thanks.

Hello, I really need some help here. I am running a video game on my computer which I have been playing for quite some time. Just last night I started getting what I thought was lag. Then I realized that the program was running at 220 K when it usually runs at 80 - 90. This was making...

By Denise Mann, Health.com April 22, 2010 12:56 p.m. EDT With finals coming up for many, I wish I was aware of this when in college. If you try it, and it really helps, (I don't know how you make yourself dream) please report back. Rhody... Edit: MATH_IS_HARD reported a similar...

This is my first post here, be gentle please ^_^. I searched for answers, but nothing came up. This is not homework, it's something I've been working on after I got bored with my Arduino. I'm working on a small project in my spare time. Using just discrete transistors, I'm building an adding...

Memory span as the "quantum" of thought plus golden ratio the basis of everything? I found this paper linked to in wikipedia's article on information theory. After a little bit of background checking, it seems the authors (or at least one of them) is known as being controversial for their...

If there is a 1024x1024 array of 32 bits numbers and we need to normalize by columns. Algorithm goes through each column, finds max and divide all numbers by the max. It would be certainly wise to store the pages by column? My rationale: 1M (2^20) main memory is allocated and each...

Hello all, I'm doing a question for the maths module in my physics degree (I'm a second year undergrad) and there's a question I'm doing on basis functions. Homework Statement Verify that functions of the type f_{n}(x) = A cos \frac{2\pi n x}{L} where n = 0,1,2... can be used as a basis...

I have a cold work Nitinol wire, my supervisor ask me to do heat treatment at 700 degree celcius after that quench in ice water.He tell me that after heat treatment, the wire will acquire the shape memory properties, but i have repeat for few sample the wire could not function. when i put the...

A number in MATLAB by default uses how much memory? my professor asked me this question today and I wasnt sure. In MATLAB I assigned a random number to the variable x >> x = 5.5623 and then used the "whos" command to determine how many bytes were stored. According to "whos", the...

A number in MATLAB by default uses how much memory? my professor asked me this question today and I wasnt sure. In MATLAB I assigned a random number to the variable x >> x = 5.5623 and then used the "whos" command to determine how many bytes were stored. According to "whos", the...

I'm running out of memory on my model help! 3D not axisymmetric! Pictures of geometry and mesh attached. Any recommendations on how to make this possible? This is volumetric flow through a cylinder with a thin membrane attached that is porous and utilizes brinkman's equations.

So, if i use this ready boost feature, will i be able to pull my drive otu when I'm done without it have any random crap on it?

Homework Statement How many cells can be in a computer`s main memory if each cell`s address can be represented by 2 hexadecimal digits? what if 4 hexadecimal digits are used? Homework Equations N/A The Attempt at a Solution ok, i tried and other people helped and i am stuck...

Computer memory has steadily grown larger, although more important may be guarding against environmental errors for its posterity. If we save three copies of memory rather than just one, to what degree (in % of memory bits) could subsequent errors (at most one out of three per position among...

Hi I originally posted this at yahoo ans but I guess I may get ans. from professionals here. source yahoo ans:http://answers.yahoo.com/question/index;_ylt=Ap2AfVLWOotPnuPOPzw6GfYazKIX;_ylv=3?qid=20100207115304AA4Du5m

Questions about Battery "Memory" I've heard that rechargeable NiCad batteries can be damaged so that they experience a large drop in voltage (and thus appear to be dead) before they are completely dead by being discharged to a point (like halfway) and then being recharged. Then I've heard that...

I'm a decent 2nd year engineering student. However my memory stinks. I am horrible at memorizing formulas or techniques for solving problems. I often resort to deriving basic stuff on exam and waste a lot of time/effort. Do any of you have the same problem? any solutions?

Have you experienced poor memory when dreaming? 2 days ago I realized I couldn't remember something obvious in my life when dreaming. When I woke up it seemed to me so obvious that I couldn't believe I couldn't remember this while dreaming. I don't think it's uncommon, it had happened to...

Problem: "What is the weight difference between an empty memory stick and the same memory stick when it contains data?" Additional question: Can the answer to the previous question be proofed?

My LORDY LORD, I'm running firefox right now with Gmail up, facebook, and a random website up. On facebook I am playing one of the stupid flash 10 games. I go to check my task manager and firefox.exe is taking up 600MB OF MEMORY! Seriously? I even check out process explorer and yes, 600MB...