Gyandev Chad

HDFC Bank , ICICI Bank , Kotak Bank offer the lowest interest rate starting at 1025% and can be considered the best bank for a personal loan In addition, based

Garlic Butter Rice - Buttery, garlicky rice – an easy side dish to It doesn't add strong garlic flavour, it's more about adding crunch with sweet"Rating: · 20 mins · Calories: 374

Launching your own range of "Special Edition" puzzles opens up your art to a It can be a kids puzzle for the company's picnic or a hand-out on your factory's

Consume an additional 500 calories per day. Adding another 500 calories to your diet everyday will lead to a weight gain of 0.5 kg, or a little over 1 lb, each week.

2020 Ford F-150 gets the Shelby Super Snake treatment with up to 770 horsepower in the supercharged version. Only 250 will be built.

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In return for representing a player or club, Agents normally earn a percentage of a player's salary / a fee agreed by the agent and club. This can be a large amount

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Read the article. Are today's this would seem to be an ideal opportunity for CFOs to play a Why CFOs need a bigger role in business transformations tempted

Looks like there is a MathLink API you can use from C#, c or Java, have you checked this out?

http://reference.wolfram.com/mathematica/guide/MathLinkAPI.html

You might want to utilize a webserver redirect. In case of Apache, a .htaccess file to redirect (or rewrite url) users to a static maintenance page:

RewriteRule ^updating.*$ $0 [NC,U,QSA,L]"RewriteRule .* /updating/ [NC,U,QSA,R=307,L]

In case you want to access the site yourself when in the maintenance mode, you can attach a specific and hopefully-unique string to the useragent header:

RewriteRule ^updating.*$ $0 [NC,U,QSA,L]"RewriteCond %{HTTP:User-Agent} !MY-CUSTOM-UA-STRING [NC]"RewriteRule .* /updating/ [NC,U,QSA,R=307,L]

Here's how to manipulate your user-agent in firefox:

Create a new about:config key named general.useragent.extra.XYZ and set it as or anything else you wish. Firefox will attach the string to the UA.

If using Chrome, try the new Mobile Emulation feature which allows you to modify the user-agent string directly from the devtools.

As you've mentioned yourself, an alternative solution could be setting of a config flag on the server side. Before making so, I suggest that you save all the user's ongoing operations on the site and let her resume them after the maintenance period. Also, let them know the exact time of maintenance beforehand.

Without some deep and dark rewriting of the Python core runtime (to allow forcing of an allocator that uses a given segment of shared memory and ensures compatible addresses between disparate processes) there is no way to "share objects in memory" in any general sense. That list will hold a million addresses of tuples, each tuple made up of addresses of all of its items, and each of these addresses will have be assigned by pymalloc in a way that inevitably varies among processes and spreads all over the heap.

On just about every system except Windows, it's possible to spawn a subprocess that has essentially read-only access to objects in the parent process's space... as long as the parent process doesn't alter those objects, either. That's obtained with a call to os.fork(), that in practice "snapshots" all of the memory space of the current process and starts another simultaneous process on the copy/snapshot. On all modern operating systems, this is actually very fast thanks to a "copy on write" approach: the pages of virtual memory that are not altered by either process after the fork are not really copied (access to the same pages is instead shared); as soon as either process modifies any bit in a previously shared page, poof, that page is copied, and the page table modified, so the modifying process now has its own copy while the other process still sees the original one.

This extremely limited form of sharing can still be a lifesaver in some cases (although it's extremely limited: remember for example that adding a reference to a shared object counts as "altering" that object, due to reference counts, and so will force a page copy!)... except on Windows, of course, where it's not available. With this single exception (which I don't think will cover your use case), sharing of object graphs that include references/pointers to other objects is basically unfeasible -- and just about any objects set of interest in modern languages (including Python) falls under this classification.

In extreme (but sufficiently simple) cases one can obtain sharing by renouncing the native memory representation of such object graphs. For example, a list of a million tuples each with sixteen floats could actually be represented as a single block of 128 MB of shared memory -- all the 16M floats in double-precision IEEE representation laid end to end -- with a little shim on top to "make it look like" you're addressing things in the normal way (and, of course, the not-so-little-after-all shim would also have to take care of the extremely hairy inter-process synchronization problems that are certain to arise;-). It only gets hairier and more complicated from there.

Modern approaches to concurrency are more and more disdaining shared-anything approaches in favor of shared-nothing ones, where tasks communicate by message passing (even in multi-core systems using threading and shared address spaces, the synchronization issues and the performance hits the HW incurs in terms of caching, pipeline stalls, etc, when large areas of memory are actively modified by multiple cores at once, are pushing people away).

For example, the multiprocessing module in Python's standard library relies mostly on pickling and sending objects back and forth, not on sharing memory (surely not in a R/W way!-).

I realize this is not welcome news to the OP, but if he does need to put multiple processors to work, he'd better think in terms of having anything they must share reside in places where they can be accessed and modified by message passing -- a database, a memcache cluster, a dedicated process that does nothing but keep those data in memory and send and receive them on request, and other such message-passing-centric architectures.

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