chris hodgins : tumblz

Mar 28
Apparently my tux droid is waiting for me at home :-)

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Mar 27

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Yikes! We exchanged contracts today and moving out next month. We now have nowhere to live. Renting here we come

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Mar 6

System z SecondLife event for Manchester Uni

So today I held my first-ever IBM presentation in SecondLife on the IBM mainframe to a group of around 15 very nice under-graduates from Manchester University. 

I was joined by Matt Whitbourne who joined me to discuss IBM career options and to help me host the session. Thanks Matt!

Hosting the presentation in SecondLife was a bit different for me so I thought I would put down a few thoughts regarding how the presentation went.

There were a few technical hiccups as I re-acquainted myself with SecondLife, such as turning around or flying when using the single line chat box.  Switching to the chat history box solved that problem nicely.

It’s quite tricky to get the camera right to show the audience and the presentation.  The chairs in the room allowed the user to hit page up and the camera would look at the presentation.  It would be nice to do something similar with a podium so the speaker has a few views to look around and keep track of the slides while maintaining the option to keep track of the audience. Or maybe change the HUD to show the current foil?

I had my doubts about how well text-based presenting would work (we could have used voice but chose the path of least resistance this time) however I was really surprised about how easy it was to interact with the audience. They felt comfortable asking questions throughout, which while might not suit everybody, helped me feel a bit more connected to the group. One problem I did have was keeping the presentation on-time when questions were asked and time was limited.  However I don’t think that was too big a deal as the questions fielded by the Manchester University group were both relevant and interesting to all in the room.

Presentation wise, we copy-pasted notes straight from powerpoint into SecondLife.  This was a great way of doing things and really helped me to focus on the questions. There is a fine balance between short sentences that take ages to paste on screen and wordy text that is quick to paste but difficult to read all at once.

All in all I felt it was a successful presentation. Thanks to those at Manchester University who came, it was a pleasure chatting with you all. I hope I convinced at least one or two of you that it’s an exciting time to get involved with the mainframe. Maybe we will see a few of you entering the next Mainframe Challenge?


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Feb 29
“And now, in early 2008, we have the System z10. The new quad-core design once again radically improves Java’s economics, with Java typically much closer to that “up to 100% improvement” figure than other workloads. So if you roughly double the core Java performance, increase the number of cores to as many as 64 per machine, triple the memory (for those memory-hungry Java applications, to trade memory for CPU), steer work better using HiperDispatch, allow up to 32 of those 64 cores to be license-free zAAPs, and run the whole thing on zNALC-priced z/OS LPARs that enjoy another “technology dividend,” what does that do to the economics?” from the Mainframe blog

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Feb 27

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Feb 26
Billy Joel : Paino Man
Amazing… makes me want to actually learn to play my harmonica

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“The z10’s capacity is equivalent to 1,500 servers based on the popular x86 design, IBM says, though it has 85 percent lower energy costs and takes up 85 percent less space than the batch of x86 servers.” Yahoo news on IBM’s new z10 mainframe

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