Lecture 1. Introduction and Basics - Carnegie Mellon - Computer Architecture 2015 - Onur Mutlu
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- Опубликовано: 1 авг 2024
- Lecture 1. Introduction and Basics
Lecturer: Prof. Onur Mutlu (people.inf.ethz.ch/omutlu/)
Date: Jan 12th, 2015
Lecture 1 slides (pdf): www.ece.cmu.edu/~ece447/s15/li...
Lecture 1 slides (ppt): www.ece.cmu.edu/~ece447/s15/li...
Course webpage: www.ece.cmu.edu/~ece447/s15/do...
Module materials: www.ece.cmu.edu/~ece447/s15/do...
Hello everyone. I hope you are enjoying the lectures. You can find the latest lectures on Computer Architecture (from 2017 to Present) in our new RUclips channel: ruclips.net/user/OnurMutluLectures
Big thank you for making these publicly available. I do study in an unrelated field but I have a background in EE. I still find EE and CS very interesting and I want to understand more than just the fundamentals, so I hope I will enjoy the course :)
To have quick free access to such incredible information is truly a miracle.
Information costs next to nothing to duplicate. To *not* have quick free access to valuable information which was already recorded should be a moral outrage. University shareholders and boardmembers are all parasite scum.
dude u'r giving this free course with lecture slides ! men u'r wonderful !
hes my teacher, check out "onur mutlu lectures" here on yt for a whole 2nd semester course for computer achritecture.. there might even be a master course on there..
WHY WOULD ANYONE EVEN THINK OF DISLIKING THESE? WE ARE GETTING LECTURES ON FOUNDATIONAL TOPICS THAT WILL HELP US GET GOOD JOBS, LITERALLY FOR FREE WHILE THE STUDENTS THERE PROBABLY HAD TO PAY THOUSANDS AND THOUSANDS OF DOLLARS FOR THIS. GOD BLESS ONLINE EDUCATION AND RUclips AND OF COURSE, THE PROFESSORS AND THE CONTENT CREATORS.
Soon that job will be outsourced or you’ll be fired when the project is over. Automation will take away these jobs first. You are not passionate about it why do it? become a lawyer or doctor for money not this.
@@cardcode8345 1) I am passionate about these and that's why I'm learning these outside of school.
2) As someone who is in academia, I can tell you that the only way to stay on top of automation is to know enough so that you can create these automations yourselves. Automating lower level tasks is how CS moves forward. But it takes another CS student to actually create these automations.
@@cardcode8345 lawyers don't get paid well anymore
@@cardcode8345 in addition you can start a business thsts about telco or a tech company yiu don't need a job
@@princealmighty5391 Legal jobs will be done by computers soon.
Studying at MIPT. Had this course (on Russian, of course) for all the spring semester. Turns out there were some little details that I missed on my lectures but yours included it. Thank you so much for uploading these lectures online
You ignited my curisority again professor ! Amazing job..
Thank you is all I can say. Democratising the acquisition of knowledge and high quality teaching is one of the truly extraordinary things about the internet age. Higher Education institutions who do so, for me, instantly gain my respect and good grace.
When you share knowledge you are the mvp
I don't know if this comment will be seen by anyone. If you are reading this, don't get intimidated by the professor or the student answering all the questions continue watching the lecture series and things will get more clear per video. You can also use Patterson & Hennessey book if you get stuck with something.
Got it bro
thank you
What's the name of Patterson &Hennessey 's book
harware/software interface
Thank you 👍
Türkiye'de bilgisayar mühendisliği öğrencisi olarak sizi geç keşfetmenin üzüntüsü ve sevinci içerisindeyim. İlgimi çeken alanda sizin gibi birisini görünce motivasyonum ve çalışma isteğim arttı. Umarım bir gün sizinle tanışma ve çalışma fırsatı elde edebilirim. Saygılar.
Dr Mutlu you were my comp arch TA in UT Austin in 97
Very thrilling to see this lecture 😊
the instructor is so likeable guy, god bless him
A very good lesson. Reveals a whole new world for me.
Great Teacher.Thank you sir.Greetings from Turkey
Just started watching. I am excited AF.
Thanks a lot prof Mutlu for making to us eager to complement our education
It's an absolute and total crime to give free college lessons on RUclips.
DO IT MORE OFTEN :D
why is he not uploading , it's 3 years since last upload
@@bzalpha236 His new lectures are here, ruclips.net/video/nA4T8sCPWtg/видео.html
@@deepanshumody4739 Thank you!
Im watching this for fun even though i graduated already
I might get some more perspectives on this
Is this course good to learn in 2024 or the latest ones? I find this one interesting please let me know
@@gayatri5397 it is. Are you a CS/CE student?
Absolute mad lad for counting orders of magnitude in base 2 instead of 10
Great content ! I wish subtitles were available, so I could really speed up the videos
This is absolute gold!! Thank you from Brazil
So wondeful… Learning computer architecture this term. Hope this course will give me a head start.
Thank you so much for making this available!
I studied physics here in the Netherlands and have always wanted to learn more about this subject and only figured this out after passing my MSc degree. Now we can enjoy this lecture series about this amazing subject at our own leisure, thank you!
lol similar story here - Msc Ph - now what? time to learn python and computer stuff I guess...
watching for 30 min without getting bored! wow!
Sir I am a great fan of yours and I admire the research you have done on NOC
Fantastic video and lecture style! I'm working on a RV32IM soft processor but I haven't taken my schools computer architecture course yet (just comp org), so there's a lot to learn. I look forward to the rest of the series!
thanks to all of you, who are related to creating such an amazing educational material
This lecture series is fantastic. Thank you for sharing!
I love learning and teaching in this field and I saw many courses of Computer Architecture,this is one of the best and I hope someday we see this course in
Coursera ,thank you so much Prof.Mutluu
Thank you for your info. I was trying to pick one series to follow:D
Sir is very tricky and smart
Bilgisayar mimarisini tekrar öğrenmem gerekiyor, böyle bir kanala rastlamam çok güzel oldu, teşekkürler...
What are u saying man
3:02 The guy walks out since the teacher starts talking about the last thing to accomplish in the course in the introduction XD
I am very glad to find the new update of year 2015. A few days ago , i just started to watch the 2013 of the same class of Prof Onur Mutlu . Compare to the old , you will find the classroom is new ,the equipment are new , and the Prof. is handsome still. LoL :)
lol
You think us nerds are attractive? Damn!
Hot as hell yo!
Wow! You are awesome, thank you very much for this material!
free college yo!
indeeeeeeed !
loved your comment yo!
@@456bhavana These lectures are legendary
We pay in data about you collected by RUclips that they then sell to whoever will pay. But I get you.
Stonks
Thank you for the lecture sir
Excellent content
thanks for sharing.
Hocam türk olduğunuzu öğrendiğimde gözümden yaş geliyordu. çok teşekkür ederim böyle bir seri yayınladığınız için
Indi bildim türk olduğu
Yes
Nicely explained. Lot's of knowledge in the air. Thank you.
Would be great to have the links to the papers mentioned in the comments and/or the description!
Awesome lecture. The teacher is fantastic also. Thanks a lot for this free content. Greetings from Finland.
At 1:34:25, how about throttling the DRAM access. It'll definitely reduce the hammerings and shall not meet the access rates for erroring out adjacent memory rows.
Man, kids are so lucky these day; if only I had access to this when I was 15 or sth.
Im 15
@@asafcohen3562 You lucky bastard
Me, who still hasnt started my first class in computer engineering: *ah i see* , *it all makes sense*
Thank you! Very nice lecture
A key factor in determining the cost of an integrated circuit is volume. Which of
the following are reasons why a chip made in high volume should cost less?
1. With high volumes, the manufacturing process can be tuned to a particular
design, increasing the yield.
2. It is less work to design a high-volume part than a low-volume part.
3. Te masks used to make the chip are expensive, so the cost per chip is lower
for higher volumes.
4. Engineering development costs are high and largely independent of volume;
thus, the development cost per die is lower with high-volume parts.
5. High-volume parts usually have smaller die sizes than low-volume parts and
therefore have higher yield per wafer
thank you sir.
This is awesome
Could you open the cc ? My listening is too bad.
Helpful thank you
Great Tutorials. Thank You
Harshitha Yendapally yup,i think this is the best from the basics...I loved it...
Question isn't their a problem with selecting rows and columns with a Mux, as if you were to activate multiple rows when activating a column you activate all values that have a row activated?
This open course is so wonderful for beginners! As a beginner, I have a question. What is the difference between memory scheduling and scaling?
nice lecture
does this course talk about how the cpu works with the memory ?
33:15 What do you do?
Stack Overflow.
the real game changers watch online Lectures.
Great explanation, Prof. i'm through 54m into this video, i think using separate row-buffers for each core would solve this issue. Like we do with servers, having multiple cache servers, replica of main servers for data access. Like wise, instead of mutli-cores with one DRAM and single row-buffer, keep the multi-cores with one DRAM but same number of row-buffers as cores. The OS scheduler will do the rest.
I am new in operating system. ****Does changing operating system have any effect on instruction set architecture or vice versa? Does operating system comes with its own assembler?****
absolutely insane we have this shit for free like this
Can someone send me the pdf pf the lecture pls, i cannot open the one above.
hi Professor . I have question about course , I'm interesting in embedded system so I want understand Computer Architecture for microcontroller and microprocessor arch(ALU - GPR-SP-IR) and the interfacing with memory(how to know ->size of register of memory ,databus , address bus ) to write efficient code .. will this course help me ? if not please tell me link of course which will help me thanks .
Are there any prerequisites for this course?
How refresh rate affects the architecture of memory?
so even if the operating system schedules the two processes to two cores, which is fair because each process gets its own, but bottleneck is the memory access policy.
This is where EE ends up if you're high on a Thursday night at 1:06am in the morning.
Absolutley 100% why I am here lol
Thank you
why are there no subtitles here?
Is this the best self teaching way to learn Computer Architecture I really want to learn but its not my major and don't want to pay extra. Is there an MIT open courseware available. Any help would be appreciated thank you
I actually thought about multi-channel memory at the beginning.
Hello, can I bother you to upload the subtitles? I will appreciate it very much!
Memory Hog Problem (Solution, my thoughts): Considering the bottleneck is memory controller and I see the primary reason is the fetch logic is predefined and hard to control as a static parameter. What if we abstract the functions of the memory controller and leave them as API's to be implemented on the system software layer. What I mean is suppose we if we have an interface to implement scheduling logic, we can actually implement the memory access logic on the device driver of the controller and have the device point to this logic. This makes it more generic.
Hi, is all other professors are this good!?
What r the prerequisites for this course
What would be the prerequisites for this course?
slide notes : www.archive.ece.cmu.edu/~ece447/s15/doku.php?id=schedule
A very good course, yet the cameraman is not as great
Harikasiniz. Videolarda Türkce altyazi secenegi yok sanirim?
Thank you Sir.
I want to ask,are there any specific courses I should comprehend to get fully understanding to this course?
here www.archive.ece.cmu.edu/~ece447/s15/doku.php you can find all course related materials, in the prerequisites you'll find the list of related courses
Denial of memory service---does one row buffer per each core can serve the purpose?I mean for 2 cores 2 row buffers are need and in DRAM Memory controller we need to set equal priority for both the core requests. @Prof. Onur Mutlu
1:06:35
I am just starting to watch the lectures...would you recommend the 2013 set of lectures or this one?
2015 lectures are more recent and the recordings are likely to be better. So, they are more recommended.
You can also check out more up-to-date versions of the course at @OnurMutluLectures
Digital Design and Computer Architecture course from Spring 2020: ruclips.net/video/AJBmIaUneB0/видео.html
Advanced Computer Architecture course from Fall 2020: ruclips.net/video/c3mPdZA-Fmc/видео.html
I have a question regarding cell variation in retention, what causes some cells to (reliably) leak faster than others?
colloredbrothers This is due to process variation effects. Cells are of different size and strength as manufacturing is imperfect. Simplifying a bit: Some cells can inherently store less charge than others (due to a small capacitor size) and some cells are inherently more prone to leaking faster (due to a weak transistor). A combination of less charge (small capacitor) and fast leakage (leaky transistor) leads to a fast-leaking cell. For more, see references [8, 21, 25] here: users.ece.cmu.edu/~omutlu/pub/raidr-dram-refresh_isca12.pdf and take a look at this paper that explains the charge storage and its effects on latency: users.ece.cmu.edu/~omutlu/pub/adaptive-latency-dram_hpca15.pdf
Carnegie Mellon Computer Architecture Thank you for the response and these video's! Very interesting.
+Carnegie Mellon Computer Architecture Wouldn't the access pattern (of the DRAM) influence the need for refresh more than PVT variations? Say a particular row is constantly written to - this row would not need regular stand-alone refreshes since the write action itself inherently refreshes data. I can think of similar analogies for read actions as well, influencing how regularly refreshing is needed for a particular row that is constantly read from. But I do believe that exploiting PVT variations can cause significant gains since I think memory is designed with a significantly larger guardband in comparison to logic thereby allowing more room for adaptively cutting into the guardband and extracting better energy/performance.
+Gokul Subramanian "More than" is very debatable. However, access pattern of course affects the need for refreshing a row. The example you gave for reads and writes makes sense. In fact, take a look at this "Smart Refresh" paper that proposes to exploit the fact that a recently accessed row does not need to be refreshed: dl.acm.org/citation.cfm?id=1331714. Usually, techniques to eliminate refreshes of recently accessed rows comes at a high hardware overhead needed to keep track of recently accessed rows, however, as explained in Section 4.2 here: users.ece.cmu.edu/~omutlu/pub/raidr-dram-refresh_isca12.pdf.
+Gokul Subramanian You are right that there is a large guardband in refresh and timing. Current DRAM refresh and timing parameters are set to ensure correct operation in worst-case devices and operating conditions. Exploiting the retention time and access latency heterogeneity of different rows and operating conditions can greatly improve the performance and power consumption of modern memories.
I would recommend anyone interested in this topic (retention time and timing variations in modern DRAM) to read the following papers.
"RAIDR: Retention-Aware Intelligent DRAM Refresh" users.ece.cmu.edu/~omutlu/pub/raidr-dram-refresh_isca12.pdf
"An Experimental Study of Data Retention Behavior in Modern DRAM Devices: Implications for Retention Time Profiling Mechanisms" users.ece.cmu.edu/~omutlu/pub/dram-retention-time-characterization_isca13.pdf
"Adaptive-Latency DRAM: Optimizing DRAM Timing for the Common-Case" users.ece.cmu.edu/~omutlu/pub/adaptive-latency-dram_hpca15.pdf
You can find the presentations of these papers at users.ece.cmu.edu/~omutlu/projects.htm.
I think he is bond, professor bond.
I like the levels of transformation but it doesn't include configuration errors or the OSI model. Many programs work on more then one system (client/server). How would you include those into your levels?
Anyone who knows how to change the sound to mono output?
Is this an undergrad class? Can't believe only 50 students have taken it!!
Unfortunately there aren't many jobs in the field of hardware engineering even in countries like USA China and Japan that actually produce the world's hardware. Web development, networking and AI have way more jobs so less ppl take this course in college
Very Noice 👍
Is any pre knowlege required for this? and if yes, what is it and where can i find lectures on that?
Hey, did you keep up with these lectures?
Yep digital logic combinational and sequential
You're awesome/
54:00 you could solve the problem by having as many row buffers as cores, right?
Potentially, but that solution is not only too expensive (a row buffer is huge), but couples the DRAM chip design (which contains the row buffers) to the number of cores (which is part of the CPU, GPU or accelerators). So, it is not a good solution.
@@CMUCompArchThank you for your answer.
hi from tunisia
thanks for free video! love onur mutlu!
aieeeen mote aieeeeen!
It will be greater if the camera can get wider angle!
onur mutlu muuuu.Türk hocamız.
Is this course still relevant in 2024? can anyone please verify? I really want to learn
Please focus the camera on the screen.
Abhishek Kumar you will get slides by slides link in description...Anyway,happy to be learning....😃
hocam 1 kahveye de bekleriz :)
Is anyone doing the labs? Is there any reading I need to do for doing labs?
bruh
camera man be like: No I will only show his face to the viewers not the slides.
That's because there are slides from the lecture in the description