Announcements

Moed B grades
You can find the final course grades following Moed B here.
published on 13/08/2012 12:34:48 by OS team
Grade updates
A list of updated final (course) grades is now available here. These include updates due to midterms/assignment grade changes and updates following your appeals (the response to your appeals was already handed out and should hopefully arrive within a few hours). Please note that changes to your final mark on the "תדפיס ציונים" will be visible within 2-3 weeks.
published on 25/07/2012 11:21:15 by OS team
Moed A solution
Is now published in the previous exams section
published on 24/07/2012 21:09:34 by OS Team
Dolev's office hours
Will be held tomorrow (25.7.12) from 14:00 to 16:00.
published on 24/07/2012 21:07:58 by Dolev Pomeranz
Danny Hendler's office hours will take place on Wednesday, July 25, between 15:00-17:00
published on 23/07/2012 22:49:35 by os122
Moed A
We've uploaded the Moed A exam to the Previous exams section. A full solution will be published in the upcoming days.
published on 19/07/2012 22:46:03 by OS team
Midterm appeals
I was notified that the midterm grade used for calculating the final mark did not take into consideration students appeals. I will fix this mistake promptly, however, this will reflect on your grades only in 2-3 weeks.
published on 18/07/2012 12:04:36 by Alon
Course grades
We've uploaded Moed A grades along with a complete listing of all grades and your final mark. (Details)
published on 18/07/2012 11:51:23 by OS team
Assignment 3 and 4 grades
Grades for assignments 3 and 4 are now available here.
published on 12/07/2012 15:49:49 by OS Team
Last Time Slots
More time slots for assignments 3 and 4 were published.

These are the last time slots so if you haven't signed up for one yet, you must sign up now.

published on 04/07/2012 16:00:33 by OS Team
Time Slots
There was a problem with the first time slots (Wednesday morning: 9:30-13). Everyone that is registered for the check during that time please make sure you're still registered, and in the correct time slot.
published on 02/07/2012 08:18:35 by OS Team
Alon's office hours
I intend to hold prolonged office hours on Wed. and Thu. (based on my availability). If you have questions and would like to come to my office please send me an email.
Good luck with your exams!
published on 01/07/2012 20:42:31 by Alon
Additional time slots
4 more time slots were added on the day of the exam - as was requested by some of you.

More time slots will be added only if all of the time slots published so far are taken.

published on 01/07/2012 00:12:51 by OS Team
Dolev's office hours during exams period
Have changed to Wednesday 16:00 - 18:00. Please send an email if you intend to come.
published on 30/06/2012 18:52:06 by Dolev Pomeranz
Assignment 3 & 4 time slots
Time slots are now available. Please read the instructions very carefully before choosing a time slot.

Good luck!

published on 29/06/2012 20:17:42 by OS Team
Distributed Synchronization
You can find a few more slides on Distributed Synchronization here. Be sure to check the bottom part of the slideshow in normal (editing) mode for a few extra comments.
published on 25/06/2012 11:31:54 by OS team
Practical sessions
Practical session 13 is the last one. Ilya and Alon will hold no PS this week.
published on 24/06/2012 21:56:18 by OS Team
Ilya's office hours this week are canceled
E-mail me to schedule for other time.
published on 23/06/2012 19:46:35 by Ilya Mirsky
Danny Hendler's lectures on next week's Monday, June 25, are cancelled.
Hi,

As per my announcement at class, my lectures on Monday, June 25, are canceled.

Danny.

published on 19/06/2012 15:31:41 by os122
File systems comparison slides
were added to Practical sessions page.
published on 17/06/2012 10:46:50 by Ilya Mirsky
Assignments 1 and 2 grades
Assignments 1 and 2 grades are now available here.
published on 14/06/2012 16:31:27 by OS team
The first presentation concerning distributed synchronization was updated
Two slides were added at the end, exemplifying the use of the distributed snapshot algorithm.

Danny.

published on 12/06/2012 16:10:52 by os122
Assignment 4 is published
Good luck!
published on 10/06/2012 18:15:12 by Ilya Mirsky
Assignment 3 additional extension
Assignment 3 deadline is extended to 12/6/12, 22:00.
Good luck!
published on 06/06/2012 13:51:13 by OS Team
Midterm grades
Midterm grades are now available here.
published on 05/06/2012 16:42:19 by OS team
Assignments 1 & 2 - Last time slots
Last time slots are now available here.
The registration will be closed on Tuesday (5/6) at 16:00, there will be no changes afterwards.
published on 02/06/2012 23:04:10 by OS team
Assignment 3 extension
Assignment 3 deadline is extended to 8/6/12, 14:00.

Good luck!

published on 01/06/2012 13:23:01 by OS Team
Complementary practical session for Amir's groups
שלום לכולם,

התירגולים שלי בתאריך 03.06 מבוטלים.
קבעתי תירגול השלמה לתאריך 31.05 בשעה 12:00-14:00 בבניין 28 חדר 202.
תירגול ההשלמה מיועד לכל הסטודנטים הרשומים לאחד משני התירגולים שלי ביום ראשון 03.06.
תירגול ההשלמה יעסוק בניהול זיכרון (תירגול 10).
בנוסף שעות הקבלה שלי בתאריכים 03.06 וב- 10.06 מבוטלות גם כן. שאלות ניתן להפנות אליי במייל.

published on 29/05/2012 11:07:26 by Amir Menczel
Roie Zivan's classes this Wednesday (May, 30) and next Monday (June 4) are CANCELLED
I will replace Roie in his next Wednesday's class (June 6, 9-11).

Danny.

published on 29/05/2012 08:53:41 by os122
Frontal checks - update
The frontal checks will be held at lab 34/316.


Good luck!

published on 28/05/2012 11:12:05 by OS team
Practical sessions next week
Sunday PSs are canceled due to the holiday. Schedule remains the same for the rest of the week. That is, unless stated otherwise, Alon will cover PS 10 (Memory - part 2) on Mon. @ 8:00, as usual. Notice that Sunday's groups will go over PS 10 at the 3.6.
published on 24/05/2012 23:47:21 by OS team
The mid-term exam will be conducted this Friday, betwwen 9-12
There were questions about the duration of the mid-term exam - its duration is 3 hours.

Danny.

published on 23/05/2012 16:19:44 by os122
Forum for Midterm
A forum dedicated to the midterm was open.
Use this forum to discuss the material with your fellow students.
The course staff will also give answers there.
published on 22/05/2012 16:30:57 by Ilya Mirsky
Assignments 1 & 2 - Frontal checks
Time slots are now available here.
Please read the instructions very carefully before choosing a time slot.


Good luck!

published on 22/05/2012 10:26:58 by OS team
Submitting alone
We would like to remind you that unless approved by course staff, submission is only allowed in pairs.
Single student submission groups in assignments 3 and 4 will not be accepted.
published on 17/05/2012 20:47:32 by OS team
How to apply special requests
To make the processing of requests more efficient, please read carefully the following instructions:

  • Send your request to the course e-mail address, with a relevant subject as specified in the course policy.
    (Do not send requests of delays/exemptions to the personal e-mails of the course staff)
  • Provide the IDs of yourself and your partner.
  • Attach scans of any relevant approvals/papers (illness, Miluim, etc.).
  • Refrain from sending duplicate e-mails of the same issue.
  • Submission system: the "request delay" option should only be used to allow you to submit with delay, not to ask for delays.
  • Submission system: since adding a partner after the official deadline isn't allowed, please register your group before the official deadline, even if you got an extension.
  • Questions concerning the matrial or assignments should be asked in the forum, or during office hours.

Following the above instructions will ease us to give you faster response.
published on 17/05/2012 13:59:04 by Ilya Mirsky
Danny Hendler's class on TUESDAY, May 22, 14-16 (group 3) is CANCELED
Hi,

As I announced in today's lecture, my class next Tuesday, May 22, 14-16 (group 3) is CANCELED.

Danny.

published on 15/05/2012 16:21:32 by os122
Material for the mid-term exam
Hi,

The material for the mid-term exam, to be held on Friday, May 25, includes all the material we studied up to (and including) synchronization, but does NOT include memory management.

Danny.

published on 15/05/2012 16:17:16 by os122
Assignment 3
Assignment 3 is online. Due date: 5/6/12, 22:00
Good luck!
published on 15/05/2012 10:53:59 by Dolev Pomeranz
A small fix in the second memory presentation
In slide 27 which describes Belady's anomaly, it should be written "the same algorithm may cause more memory faults with MORE page frames" instead of "…with LESS page frames" as was written before. The fixed presentation is now uploaded, as is the 3'rd presentation about memory management.

Danny.

published on 14/05/2012 12:51:31 by os122
Assignment 2 Updated
Assignment 2 is updated to clarify some issues. Changes are marked in yellow.
Note the added section in part 3, which explains the output of the simulation.
published on 13/05/2012 12:32:58 by Ilya Mirsky
Complementary Practical Session
A complementary practical session (for my Thu. morning group) was scheduled for Tue. 15/05/2012, 20:00-18:00 room 34/107.
published on 13/05/2012 09:40:53 by Alon Grubshtein
Dolev's office hours
Have changed to Sunday 18:00 - 20:00. Please send an email if you intend to come.
published on 13/05/2012 09:38:12 by Dolev Pomeranz
Assignment 2 extension
Assignment 2's due date was updated. Please submit your work no later than May 17, 22:00.
Also note that the schedule for assignments 3 and 4 was not changed - plan accordingly.
published on 12/05/2012 17:12:24 by OS team
Change in Danny Hendler's office hours
Hi,

Due to student requests, my new office hours will be as follows: Tuesdays, 13-14 and Wednesdays, 12-13.

Best regards, Danny.

published on 07/05/2012 09:34:32 by os122
The mid-term exam will be conducted on Friday, May 25.
More details will be published soon, as well as mid-term exams from previous years.

Best regards, Danny.

published on 06/05/2012 21:30:14 by os122
The 3'rd synchronization presentaiton (monitors and classical synch problems) was updated
I've added slides 7 and 8, which describe two problems that arise in the implementation of the producer/consumer buffer from monitors (shown in slide 6) if the monitor does not satisfy Hoare semantics.

The 4'th (and last) synchronization presentation was also uploaded.

Best regards, Danny.

published on 29/04/2012 16:04:02 by os122
Assignment 2
Assignment 2 is online. Due date: 14/5/12, 22:00
Good luck!
published on 24/04/2012 10:10:06 by Ilya Mirsky
The 2'nd synchronization presentation (semaphores) was updated
Hi,

The initialization of the S2 semaphores in slides 24 and 26 was fixed: was 1, changed to 0.

Danny.

published on 22/04/2012 19:55:32 by os122
שיעור השלמה לקבוצה 2 של דני הנדלר - ביום ראשון הבא, 29 באפריל, בין השעות 18-20 בבניין 34 חדר 110
שעור ההשלמה ייערך בבניין 34, חדר 110

בברכה דני

published on 22/04/2012 12:06:15 by os122
שיעור השלמה לקבוצה 2 של דני הנדלר - ביום ראשון הבא, 29 באפריל, בין השעות 18-20
Hi,

Two classes of Group 2 are canceled this week: Monday's class is canceled because of the Yom Patuach, and Wednesday's class is canceled because of Yom Hazikaron.

We will therefore hold an extra class for Group 2 next Sunday, April 29, between 18-20. The secretariat will issue a formal notification about that (including class details) today or tomorrow.

Best regards, Danny.

published on 22/04/2012 10:58:32 by os122
Amir Menczel - practical sessions 22.04.2012
Amir Menczel's practical sessions on this Sunday (22.04) are cancelled.

This refers to both sessions (16:00 - 18:00 and 18:00 - 20:00)

Students that attend these sessions are required to attend other TA's practical session for this time only.

Also, my office hours are cencelled this week.

published on 20/04/2012 11:13:51 by Amir Menczel
Practical Session 3 - Threads - Slides updated
The slides of practical session 3 were updated.
published on 03/04/2012 13:17:29 by Dolev Pomeranz
Amir Menczel - Office hours
Hi, Students planning to come to my office hours (Sunday 14:00-16:00) are requested to send me an email and schedule a meeting.

Good Luck,
Amir

published on 01/04/2012 10:43:08 by Amir Menczel
Practical session on Thu.
Due to the holiday, there will be no practical session this coming Thursday. Students registered to Alon's Thursday practical session should join an alternate one (see the Course info page for practical sessions times).
published on 31/03/2012 15:33:49 by Alon
Class material updated
Hi,

The link to the scheduling.ppt presentation was fixed and a version with a few minor changes was uploaded. Also, the first presentation on synchronization, dealing with the mutual exclusion problem, was uploaded.

Danny.

published on 28/03/2012 10:58:49 by os122
Assignment 1
Assignment 1 is now online. Due date is 22/4/12, 22:00.
Enjoy!
published on 25/03/2012 23:18:43 by OS team
Forum
Please register to the forum with your BGU credentials.
The forum is a discussion tool for students, and is meant for you to assist each other.
Please keep an appropriate discussion level, and do not publish assignments solutions.

Technical problems: send an email to the course email address, as specified in the Syllabus.
published on 06/03/2012 13:21:24 by Ilya Mirsky
Welcome to OS122!
published on 07/02/2012 15:17:04 by OS team