On Jan 19, 10:07 am, "ma...@mendelu.cz" wrote:
> On 14 Led, 08:50, mabshoff
Hi Robert,
> To finish this thread: I had another lecture in computer lab today. We
> had 2GB RAM, very very big swap and 15 rather slow students with
> allmost no experiences with computer algebra systems ( = short
On 14 Led, 08:50, mabshoff wrote:
>
> Your server calls Maxima and without taking a closer look it is
> unclear to me if you start a Maxima process per user or not. Overall
> Maxima is lighter than Sage primarily because it is all common lisp
> and does not use any external libraries per defaul
>
> In the text "The calculators are divided into several groups, the
> desription is available", the word "description" is missing the "c".
>
Fixed, thanks. Robert
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On Jan 13, 11:28 pm, "ma...@mendelu.cz" wrote:
Hi Robert,
> Thank you for all your answers. I will upgrade my hardware
>
> > 512MB is very very piddly for a server.
>
> Yes. I thought that this could be enough, because another my server,
> Mathematical Assistant on Web
> (http://user.mendelu
ma...@mendelu.cz wrote:
> Thank you for all your answers. I will upgrade my hardware
>
>
>> 512MB is very very piddly for a server.
>>
>
> Yes. I thought that this could be enough, because another my server,
> Mathematical Assistant on Web (
> http://user.mendelu.cz/marik/maw/index.php?lang=en
Thank you for all your answers. I will upgrade my hardware
> 512MB is very very piddly for a server.
>
Yes. I thought that this could be enough, because another my server,
Mathematical Assistant on Web (
http://user.mendelu.cz/marik/maw/index.php?lang=en&form=derivace
) runs pretty well with m
On Jan 13, 2009, at 6:04 PM, mabshoff wrote:
> On Jan 13, 5:50 pm, Jason Grout wrote:
>> Jason Grout wrote:
>
>
>
>>> I noticed that for my Sage server, each open worksheet took about
>>> 140MB
>>> of RAM. When I ran out of memory, the server froze and lots of
>>> errors
>>> happened. To
On Jan 13, 5:50 pm, Jason Grout wrote:
> Jason Grout wrote:
> > I noticed that for my Sage server, each open worksheet took about 140MB
> > of RAM. When I ran out of memory, the server froze and lots of errors
> > happened. To me, it sounds like you probably ran out of memory if you
> > ha
On Jan 13, 5:00 pm, "William Stein" wrote:
> > Either way, the result of get_memory_usage() should be consistent
> > across platforms and not return a string in some cases and something
> > else on Linux. It should be a float of the memory used in MB.
>
> +1 Create a trac ticket. This will
Jason Grout wrote:
> ma...@mendelu.cz wrote:
>>
>> On 13 Led, 17:47, "William Stein" wrote:
>>> On Tue, Jan 13, 2009 at 8:36 AM, ma...@mendelu.cz wrote:
>>>
Dear all,
I had a lecture in computer lab. There were about 15 students on one
sage server. After about 20 minutes we got m
> sage: get_memory_usage()
> '81M'
>
> While there should be a difference between 32 and 64 bit, i.e 64 bit
> code is larger and consumes more memory, the result from Linux is not
> even close to the truth, i.e. I don't think 32 bit Solaris is roughly
> a magnitude more efficient than 64 bit Linux
On Jan 13, 3:50 pm, "William Stein" wrote:
> On Tue, Jan 13, 2009 at 3:42 PM, mabshoff
> > In general we are using crappy interfaces to measure memory
> > consumption from Sage, i.e. get_memory_usage(). We are even parsing
> > the output from "top" on non-Linux platforms!
>
> Sage uses /proc
On Tue, Jan 13, 2009 at 3:42 PM, mabshoff
wrote:
>
>
>
> On Jan 13, 3:05 pm, Jason Grout wrote:
>> mabshoff wrote:
>
>
>
>> > This is not how this works, i.e. a lot of the memory Sage uses is
>> > shared mappings between libraries, so the first notebook process is
>> > much, much more expensive
On Jan 13, 3:05 pm, Jason Grout wrote:
> mabshoff wrote:
> > This is not how this works, i.e. a lot of the memory Sage uses is
> > shared mappings between libraries, so the first notebook process is
> > much, much more expensive than subsequent ones. top and the default
> > interface it uses
On Tue, Jan 13, 2009 at 11:39 AM, ma...@mendelu.cz wrote:
>
> Many thanks, memory seems to be a big problem on my server (I did
> tests you suggested on my laptop and each worksheet is consumig a lot
> of memory). I have seen that sagenb.org has 2GB memory - like my PC.
> How many users wirk simu
mabshoff wrote:
>
>
> On Jan 13, 10:52 am, Jason Grout wrote:
>> ma...@mendelu.cz wrote:
>
>
>
>> I noticed that for my Sage server, each open worksheet took about 140MB
>> of RAM. When I ran out of memory, the server froze and lots of errors
>> happened. To me, it sounds like you probably
On Jan 13, 10:52 am, Jason Grout wrote:
> ma...@mendelu.cz wrote:
> I noticed that for my Sage server, each open worksheet took about 140MB
> of RAM. When I ran out of memory, the server froze and lots of errors
> happened. To me, it sounds like you probably ran out of memory if you
> had
On Jan 13, 2009, at 11:39 AM, ma...@mendelu.cz wrote:
> Many thanks, memory seems to be a big problem on my server (I did
> tests you suggested on my laptop and each worksheet is consumig a lot
> of memory). I have seen that sagenb.org has 2GB memory - like my PC.
> How many users wirk simultaneo
Many thanks, memory seems to be a big problem on my server (I did
tests you suggested on my laptop and each worksheet is consumig a lot
of memory). I have seen that sagenb.org has 2GB memory - like my PC.
How many users wirk simultaneously on sagenb.org?
* I think that I can set up my personal co
ma...@mendelu.cz wrote:
>
>
> On 13 Led, 17:47, "William Stein" wrote:
>> On Tue, Jan 13, 2009 at 8:36 AM, ma...@mendelu.cz wrote:
>>
>>> Dear all,
>>> I had a lecture in computer lab. There were about 15 students on one
>>> sage server. After about 20 minutes we got messages, that Sage lost
On 13 Led, 17:47, "William Stein" wrote:
> On Tue, Jan 13, 2009 at 8:36 AM, ma...@mendelu.cz wrote:
>
> > Dear all,
>
> > I had a lecture in computer lab. There were about 15 students on one
> > sage server. After about 20 minutes we got messages, that Sage lost
> > connection to Maxima. I di
On Tue, Jan 13, 2009 at 8:36 AM, ma...@mendelu.cz wrote:
>
> Dear all,
>
> I had a lecture in computer lab. There were about 15 students on one
> sage server. After about 20 minutes we got messages, that Sage lost
> connection to Maxima. I did not know how to establish the connection
> again and
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