Ummm ... where are you getting the numbers 170 +700 from?

from what i am reading ... here

https://secure.worldcommunitygrid.org/help/viewTopic.do?shortName=minimumreq

CEP2 needs 1 gig RAM per core to run

I've figured it out from System monitor in Linux Mint (RAM memory) and BOINC Manager (disc memory->RAM memory for mounting).
Just run 1 CEP 2 WU and you'll see disk usage shown in BM increases by 700 MB from when you weren't crunching; it was 200 MB in my case, I'm currently attatched to WCG only. Then take a look at System monitor, Resource tab and you'll see RAM memory usage increases by 170 MB every time a new CEP 2 WU starts.

Minimum disk space (->RAM memory for mounting) required is 2.5 GB * and each CEP 2 WU you chrunch requires up to 700 MB more disc/RAM memory.

* when I assigned only 2 GB to the project BM warned me the project needs 2.5 GB so the system requirement page isn't up to date

ok i want to throw some other stuff out here too ... turn around times ... i am seeing posts that say 18 hours ... yet when i have a CEP2 work unit going its saying the deadline is 10 days? whats up with that???

also linux kernals that are streamlined for quad processors ... there is a [H] immage of Ubuntu 12.04 LTS that has those ... but ... you cant update it or they go away ... and the OS fails to install or the OS fails to start up if you put a video card in the box (Nvidia 980 in my case ... dont know about other cards) ... but GPUs have way to much computing power not to have one nowadays ... so i am no longer using that OS ... but that doesnt mean someone else hasent compiled them for a more updated version of the OS or any Linux OS that will support my videocard ... i mean im not married to Ubuntu ... any OS that has it ... i will migrate to it .... anyone know something about that or Feeling ambitious and want to compile some streamlined kernels?

Next thing: P-states ...
with my lintel laptop ... it says 2.2 Ghz and u know what??? its always in that state
however ... with the AMD (Opterons G34s) their state fluctuates ... using the same 2.2Ghz example ...
at idle they are at 800Mhz ... do a little something something and maybe they will bump up to 1375 or 1825 ... get busy and they cap out at the 2200 ... and them there are the ones that have the multiple turbo modes so it might jump up to 2800 at half load and then drop back to 2600 when under a full load ... so when you adjust the configuration settings in Bonic/WCG Devise setting to use 100% of the CPUs ... i wonder 100% of what state??? ... 100% of idle? ... 100% of the base state??? ... that means the software is throttling my CPUs back ALOT!! ... do you maybe need to set the configuration to Saaaaay 400% ... or maybe just use TPC (Turon power control) and lock your processor in its highest state and dont worry about it? .... or maybe its just nothing .... im over thinking it ... set it to 100% and forge it?

any input?

It's 18 -CPU- time hours, not 19 when the cut-off happens [no debate on the why plz... off-topic]. Depending on efficiencies, my laptop goes daytime about 70-75%, nighttime about 85-95%, the elapsed time is proportionally longer.

The scripted staggered start can be achieved with the app_config.xml. On my work-system it can take -in use- about 7 minutes -Elapsed- before the setup is complete and the CPU time starts ticking, so that would be my used interval to increment the <max_concurrent> tag value for <name>cep2</name> app and re-read [using the boinccmd.exe tool in a terminal window]. An app_config.xml just for CEP2 looks like this:

<app_config>
   <app>
      <name>cep2</name>
      <max_concurrent>1</max_concurrent>
   </app>
</app_config>

It's been done before, so search the forums, kind of a post-bootup script or one that's kicked when the boinc client is started [via a batch].

I may be in the wrong but I think the values shown in the column for the time remaining to complete a WU aren't reliable regarding CEP2 WUs, so maybe your PC can actually meet the deadline despite what BM shows.
I suggest you to let some WUs of different magnitude * go on and see if they meet the time limit.

* a rough indication of this is the number of carbon atoms in the chemical formula in WU name, e.g. C18Hxx... and C32Hxx...