Hi,

I am trying to create a new topology using anynet but it is giving me the following error when i am trying to simulate it using ./boolsim /examples/anynet.anynet_config.

I tried to run it using the example lines given in the readme file also but still the error remains same. Please tel me how to resolve it.

Pakhi

I have locally added TSV based 3D Mesh topology to booksim and the difference is observed between 2D and 3D (Latency difference).

What's the difference between overall network latency and overall packet latency?
And how measure each of them?

Hi,
I'm trying to simulate a multicast network by booksim2, and I wonder if there is any existing module for multicasting, or if someone has already tried to implement it.
I'm currently working with the trafficmanager and routing algorithm parts, but the codes are too complex for me to modify.
Hope someone can help me. Thanks so much!

Hi guys! Recently I am learning routefunc.cpp in Booksim 2.0.
when I use Adaptive_xy_yx_mesh, I hae no idea what's the meaning of 'in_channel' in following code:

` if(in_channel < 2*gN){
x_then_y = (f->vc < (vcBegin + available_vcs));

}

`

Can anyone explain the meaning of 'in_channel<2*gN'? Thanks!

I'm using the anynet_config and anynet_file example files, but trying to run them gets a parse error. Is there any example of these files being used?

how to calculate traffic passing through a channel in booksim2.0,in order to calculate the routing pressure of a routing algorithm?

Hi, I have a question about Booksim2.0.
Is there a way to determine source node and destination node?
For example, starting from (x1,y1) and arriving at (x2,y2).
If not, which file should be referenced and modified?

Thanks

Hi,
How can we run Booksim2 in Visual studio 2013?
When I add src folder to visual studio 2013, I faced with compile error.

Thanks

how to calculate routing pressure of an routing algorithm using booksim2.0

Hi,
I am using (modifying) booksim2 for my own research.
The logic here in this code block seems to be a bit wired?
In file 'trafficmanager.cpp', line 777:

    } else { //normal mode
        result = _injection_process[cl]->test(source) ? 1 : 0;
        _requestsOutstanding[source]++;    ========================> this line!
    } 
    if(result != 0) {

When "_use_read_write!=0" , "_requestsOutstanding" is increased every injection test, this seems wired. I reckon the developer means this:

    } else { //normal mode
        result = _injection_process[cl]->test(source) ? 1 : 0;
        if(result)
             _requestsOutstanding[source]++;    
    } 
    if(result != 0) {

?

Hi,

I'm trying to run the anynet_config and anynet_file example files, even by using the default number I can not get an answer.
I used :
./booksim examples/anynet/anynet_config

and I get:
Anynet:can't open network file anynet_file

I add following line in the anynet.cpp :
file_name.insert(0, "examples/anynet/");

like here:

void AnyNet::_ComputeSize( const Configuration &config ){
file_name.insert(0, "examples/anynet/");
file_name = config.GetStr("network_file");
if(file_name==""){
cout<<"No network file name provided"<<endl;
exit(-1);
}

but I still have same problem,
Anynet:can't open network file anynet_file

Could you please help me to fix this.

Thanks

Hi,
I'm working on a broadcast routefunc on booksim2, and I found the coordinate is quite subtle.
The only hint I can get is in the routefunc.cpp's dor_next_mesh() method:
It returns 2*dim_left for right or 2*dim_left for left.
Well, if my network has 2 dimensions, what's dimension 0, and 2*0 indicate for what?
Also, how is router's id calculated? Plz give me some hint for 2 dimension network.

As the title says. Is this suppose to be the expected behavior or is this a bug?

Hello. Thanks for sharing the booksim code. I have noticed that booksim supports pseudo-closed-loop simulation using dependency-annotated traces. I would like to ask whether there are corresponding simulation examples. Thank you!

This project needs a license so that the terms of use are set. Companies desiring to use this won't because there is no license.

I'm using booksim2 and my own analysis code for a research project, and given the responses in issue #7, I wanted to ask which routing functions (as opposed to the actual routers) are known to be correctly implemented?

That is not to say I think they are broken! Just that potentially the code has been neglected, as with the Chaos router, and that this might cause odd results.

I am specifically interested in those functions applicable to two dimensional mesh networks. The two main ones I have been using are dim_order and min_adapt.

Thanks! :)

Hi
How can I generate packet in special time with given number of packets?

Are there any bugs when using Chaos router with anynet?
I noticed, _IsEjectionChan function is not used at all.

Thanks

Hello,I cannot visit http://nocs.stanford.edu/booksim.html .
Who knows why？
Thank you.

Setting vc_alloc_delay to 10 in the examples/dragonflyconfig file results in failed assertion:

booksim: routers/iq_router.cpp:783: void IQRouter::_VCAllocEvaluate(): Assertion `time >= 0' failed.
Aborted

This assertion is in VCAllocEvaluate() function in iq_router.cpp.
The loop that checks this assertion iterates over all entries in vc_alloc_vcs dequeue. Lets call this loop L1.
There is another loop before L1 that iterates over vc_alloc_vcs and sets this timestamp.
However, if the timestamp for first entry is non-negative, this loop breaks. Thus, when we enter L1, the first entry in vc_alloc_vcs is guaranteed to have non-negative time but others are not, resulting in this assertion fail.

Hi,

I just started with booksim and tried to run a few simulations. I found that booksim behaves very differently if it's given different sample_period value. For example, here's my config file:

num_vcs=3;
sw_allocator=separable_input_first;
sim_power=1;
vc_allocator=separable_input_first;
injection_rate_uses_flits=0;
input_speedup=1;
vc_alloc_delay=1;
latency_thres={1000000,1000000,1000000,1000000};
packet_size=5;
priority=none;
sim_count=1;
wait_for_tail_credit = 0;
sw_alloc_delay=1;
alloc_iters=1;
routing_function=dim_order;
injection_rate =0.2;
routing_delay=0;
traffic=uniform;
credit_delay=2;
output_speedup=1;
sample_period=100;
st_final_delay=1;
topology=torus;
warmup_periods=3;
c=1;
internal_speedup=1.0;
watch_out=-;
k=10;
n=2;
vc_buf_size=8;
use_noc_latency=0;
tech_file=techfile.txt;

The sample period of 100 could finish almost instantaneously, however, if I change it to 200, 400, or 1000, it would take really really long. When I looked at those output logs, it seemed that the "Measured flits" remained unchanged for a lot of iterations.

Any idea how that could happen?

Thanks!

How can channel slicing be implemented using Booksim 2.0?

Hi,

When I run singleconfig in the example folder, I got aborting simulation. the error says exceed 500 cycles. even When I used default numbers.

Could you please help, How can I fix this?
Also, can I use this singleconfig for different kinds of fly topology, for example for four stages?(topology = fly, k = 2, n=4), because for this numbers also I have same error.

In booksim_config.cpp, AddStrField("parm_seed", ""); is spelled wrong. It should be AddStrField("perm_seed", ""). Currently, Configuration::GetStr errors when trying to use randperm in the config file.

To reproduce: Change traffic = uniform; in torus88 to traffic = randperm;