Re: Update on CODA (evio) format

[heddle@pcs.cnu.edu]

A memory manager would deal with CEF in (possibly shared) memory. It would provide utilities to get records by name, id, etc and also to add records to the event. Such tools will surely be needed by an analysis package.

dph



    On Mon, 04 Jun 2001 15:03:41 -0500 Craig Steffen <crsteffe@indiana.edu> wrote: 

>heddle@pcs.cnu.edu wrote:>
>> >
>> evio is very nice -- >
>
>Having dealt with it a very little bit at Jlab on my thesis experiment, I have to agree.  CEF (as this
> organization format is referred to in the CODA manual) is very flexible, and I think using it in Hall 
>D would be of great benefit.  
>
>Keeping binary formats in mind, and using CEF as a template, I wrote up a recommendation to 
>Paul Smith (the IU engineer who's designing the PCI FADC prototype) for the FADC FIFO format 
>based on it.  It has the board's FIFO formatted as a CEF bank,
>and each block of channel information within the bank is formatted as a CEF packet.  The 
>prototype currently under design will format its output data consistent with this design. 
>
>> (a) being too complicated (balderdash) and >
>
>I agree that's not a problem.  You have to be careful when using a binary data format, but it's 
>not prohibitive.
>
>> (b) not providing a memory manager (true)>
>I'm not sure what "memory manager" means in the context of a data format.  >
>
>Sincerely,>
>
>Craig Steffen >
>
>-- >
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> Craig P. Steffen         crsteffe@indiana.edu>
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