Speeds and feeds

Hello, Slashdot.

In a story on PC Pro, Nvidia architect John Montrym (whose name was incorrectly spelled "Mottram") quoted my recent blog post on Larrabee as concluding that "the 'large' Larrabee in 2010 will have roughly the same performance as a 2006 GPU from Nvidia or ATI."

Alas, this isn't really what I said or meant.

What I actually described as equating to "the performance of a 2006-vintage...graphics chip" was a performance standard defined by Intel itself--running the game F.E.A.R. at 60 fps in 1,600 x 1,200-pixel resolution with four-sample antialiasing.

Intel used this figure for some comparisons of rendering performance. If Larrabee ran at 1GHz, for example, Intel's figures show that... Read more

Earlier this month, I traveled to Denver for Denvention 3, the 66th World Science Fiction Convention. I first attended Worldcon in 1977, when it happened to take place in Miami, where I was living at the time.

Since then, I've been to 15 more Worldcons, including in Denver. (I've been pretty lucky--the Worldcon has been held in my home state six times.) I've also been to four North American Science Fiction Conventions (NASFiCs), which are held in the United States when the Worldcon is overseas.

A good fraction of the attendees at a Worldcon are San Francisco-based professionals--writers, agents, editors, publishers, artists, and others. Along with some of the more well-known fans, they participate in panel discussions on a variety of topics. These panels are my favorite part of the Worldcon.

This year, it seemed that there was a panel on issues related to e-books and electronic publishing in virtually every time slot. I went to several of these sessions. It seems to me that there's a serious conflict between the preferences of some professionals and... Read more

Samsung Electronics, an arm of the giant Korean company (second only to General Electric in annual revenue among conglomerates), held a press event in San Francisco last week to show off its products for the coming holiday season.

Samsung's new Series 9 LCD HDTVs use LED backlights to improve contrast and color quality

(Credit: Samsung Electronics)

I'd been looking for an excuse to go up to the city, so off I went-- taking Caltrain rather than driving. Conveniently, the Samsung event was just a few blocks from the train station in San Francisco.

... Read more

Intel announced on Monday that it will be presenting a paper at Siggraph 2008 about its "many-core" Larrabee architecture, which will be the basis of future Intel graphics processors.

The paper itself, however, has already been published, and I was able to get a copy of it. (Unfortunately, as you'll see at that link, the paper is normally available only to members of the Association for Computing Machinery.)

Intel's Larrabee includes "many" cores, on-chip memory controllers, a wide ring bus for on-chip communications, and a small amount of graphics-specific logic.

(Credit: Intel)

The paper is a pretty thorough summary of Intel's motives for developing Larrabee and the major features of the new architecture. Basically, Larrabee is about using many simple x86 cores--more than you'd see in the central processor (CPU) of the system--to implement a graphics processor (GPU). This concept has received a lot of attention since Intel first started talking about it last year.

... Read more

I've been signing up with some of the major job sites. I started with NotchUp.com, mostly because I was curious about NotchUp's rather unusual strategy. Candidates are paid for interviews set up through NotchUp.com, while NotchUp itself gets fees from the participating companies.

NotchUp recommends that candidates ask for approximately a full day's pay for an interview. That seems like an extraordinarily high price. Companies are free to make a lower offer, though. I set my asking price well below that day's-pay level, and I'm still not surprised I've had no inquiries. I wonder if it's working for anyone else.

On the recommendation of a friend in the business (he actually works for a different jobs site), I also signed up for TheLadders.com, which specializes in jobs with salaries above $100K/year (which we in California refer to as a "subsistence wage").

... Read more

It's been 19 days since I tried and failed to get a new iPhone 3G, but today I became eligible for the discounted price, and at 7:50am I was in line at the Apple Store at the Westfield Valley Fair mall in San Jose.

As you can read in my previous post, I couldn't get the usual low price for my new iPhone because I had 19 days left on my current 2-year AT&T service contract. Apple was willing to sell me the phone for an extra $200, but I decided I'd rather wait until today.

I was the sixth person in line, and by 8:00am when the store opened, there were five more iPhone buyers in line behind me.

As we lined up, we received cards from an Apple employee reserving the particular model we wanted. I'd estimate the fellow had about 40 cards. I asked if the number of cards corresponded with the number of iPhones in stock, but he wouldn't say. Another Apple guy followed behind, checking our AT&T upgrade eligibility. I did this myself last night, so I was sure it would be okay this time, and indeed it was.

The doors opened right at 8:00am and ... Read more

On Thursday, I attended MobileBeat 2008, a new conference here in Silicon Valley focused primarily on cell phones broad enough to encompass closely related gizmos like Apple's iPod Touch and--at least in theory--mobile Internet devices.

The event was hosted by VentureBeat, where a great many blog posts can be found that go through all the sessions and significant announcements from the conference. (My thanks to VentureBeat writer Dean Takahashi, who invited me to the conference.)

... Read more

A friend of mine told me recently about Tor.com, a new site managed by Tor Books, part of the Macmillan publishing group.

There's something cool going on there for just the next few days. And if you've bought an Amazon Kindle or a Sony Reader--or just like to read e-books on your laptop, cell phone, or other system--you'll want to scoot right over to the "Freebies Bonanza" page. [Update-- this content is no longer available.]

... Read more

I have Comcast cable modem service here at home. It's been very reliable. Service interruptions have been rare and brief. The cable modem I was given years ago is still working fine. Network performance has been reasonably good.

So all in all, I'm happy with the service.

(Credit: Comcast)

But I just found out about something that really bugs me--and may explain why I've received occasional reports over the years that an e-mail I sent didn't get through at all--or was marked as spam when it did arrive.

This came up about a week ago, when I noticed that some (but not all) outbound e-mails sent through Apple's .Mac service (now known as MobileMe) were not going out. After waiting about an hour for the messages to go through, I reported the problem to the service's support desk.

It turned out that... Read more

Okay, this gets a little complicated. More complicated than it should, really.

Apple's iPhone 3G

(Credit: Apple)

I am an AT&T customer. My current two-year contract is up on July 30-- just 19 days from now.

Normally, AT&T allows customers to upgrade early by paying a moderate fee.

As CNET's Dawn Kawamoto put it in this blog post, "eligibility for an upgrade discount, the carrier said, is generally determined by amount of time remaining on a current contract and the payment history." One version of the upgrade rules is visible on Best Buy's website.

The worst-case situation, one might suppose, is that... Read more