[gem5-users] Re: Error while installing gem 5

[keshav via gem5-users]

Hi,

What's the error message that you get ?

On Tue, 20 Apr, 2021, 10:31 am VAIDYA ROHINI VILAS via gem5-users, <
gem5-users@gem5.org> wrote:

> Hello,
> while building ARM or X86 architecture on gem5 I am using command "scons
> build/X86/*gem5*.opt -j5" but scons is not yet build successfully. Here
> ,I have attached screenshot where building of ARM stops.
> Please, help me to solve this issue ASAP.
> Thank you.
> --
> *From:* ahmad sedigh via gem5-users 
> *Sent:* 19 April 2021 13:31
> *To:* gem5 users mailing list 
> *Cc:* ahmad sedigh 
> *Subject:* [gem5-users] Re: Error while installing gem 5
>
> Hello,
> At this stage you should just press enter and continue.
> The warning is negligible.
>
> Ahmad
>
> On Mon, Apr 19, 2021 at 1:55 PM VAIDYA ROHINI VILAS via gem5-users <
> gem5-users@gem5.org> wrote:
>
> Hello ,
> I am trying to download gem5 in my new system having ubuntu version 20.04
> using "git clone https://github.com/gem5/gem5.git
> " . I also tried from official
> documentation of gem 5 but while building gem5 using  command  "*scons
> build/ARM/gem5.opt -j5"*   i am getting error as
>
> *"Scons: Reading SConscript files ... You're missing the gem5 style or
> commit message hook. These hooks help to ensure that your code follows
> gem5's style rules on git commit. This script will now install the hook in
> your .git/hooks/ directory. Press enter to continue, or ctrl-c to abort:  "
> *Please help me to solve this error ASAP.
> Thank you.
>
>
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[gem5-users] 答复: Re: DRAMCTRL self-refresh frequency

[Liyichao via gem5-users]

Sorry, I get the wrong info.

My current tREFI is 3.9us, tXS is 360ns, tRFC is 350ns.


李翼超（Charlie）

华为技术有限公司 Huawei Technologies Co., Ltd.

部门：计算系统与组件开发部 [云与计算BG]
手　　机：15858232899
电子邮件：liyic...@huawei.com 
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-邮件原件-
发件人: lsteiner--- via gem5-users [mailto:gem5-users@gem5.org] 
发送时间: 2021年4月19日 21:27
收件人: gem5-users@gem5.org
抄送: lstei...@rhrk.uni-kl.de
主题: [gem5-users] Re: DRAMCTRL self-refresh frequency

The refresh rate is determined by the parameter tREFI in 
"mem/DRAMInterface.py". However, if you want a refresh rate of 64 ms you cannot 
simply set tREFI to 64 ms. tREFI is the time between two refresh commands, 
while 64 ms usually is the time between two refresh commands to the same DRAM 
cell.  Depending on the selected device size and temperature range you have to 
set different values for tREFI and tRFC. You can find more information in the 
JEDEC standard for DDR4. 

The self-refresh frequency is not determined by the DRAM controller, but by the 
DRAM device itself. This parameter cannot be modified via configuration. The 
only parameter you can modify is tXS (self-refresh exit time). For more 
information you should also take a look at the JEDEC standard.
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[gem5-users] Running Garnet for a large number of nodes

[Arash Azizi via gem5-users]

Hi All,

I want to simulate a topology in Garnet with a large number of nodes (e.g. 256 
to 1024). However, for a large number of nodes like 512 nodes, I get this error:


Traceback (most recent call last):
  File "", line 1, in 
  File "build/NULL/python/m5/main.py", line 457, in main
exec(filecode, scope)
  File "configs/example/garnet_synth_traffic.py", line 151, in 
m5.instantiate()
  File "build/NULL/python/m5/simulate.py", line 118, in instantiate
for obj in root.descendants(): obj.createCCObject()
  File "build/NULL/python/m5/SimObject.py", line 1685, in createCCObject
self.getCCParams()
  File "build/NULL/python/m5/SimObject.py", line 1626, in getCCParams
value = value.getValue()
  File "build/NULL/python/m5/params.py", line 250, in getValue
return [ v.getValue() for v in self ]
  File "build/NULL/python/m5/params.py", line 250, in 
return [ v.getValue() for v in self ]
  File "build/NULL/python/m5/SimObject.py", line 1689, in getValue
return self.getCCObject()
  File "build/NULL/python/m5/SimObject.py", line 1667, in getCCObject
params = self.getCCParams()
  File "build/NULL/python/m5/SimObject.py", line 1626, in getCCParams
value = value.getValue()
  File "build/NULL/python/m5/params.py", line 879, in getValue
self.masks, int(self.intlvMatch))
TypeError: __init__(): incompatible constructor arguments. The following 
argument types are supported:
1. _m5.range.AddrRange()
2. _m5.range.AddrRange(arg0: int, arg1: int)
3. _m5.range.AddrRange(arg0: int, arg1: int, arg2: List[int], arg3: int)
4. _m5.range.AddrRange(arg0: std::vector >)
5. _m5.range.AddrRange(arg0: int, arg1: int, arg2: int, arg3: int, arg4: 
int, arg5: int)

Invoked with: 0, 536870912, [1048832, 2097664, 4195328, 8390656, 16781312, 
33562624, 67125248, 134250496, 268500992], 256

Did you forget to `#include `? Or ,
, , etc. Some automatic
conversions are optional and require extra headers to be included
when compiling your pybind11 module.




Does anybody have an idea how I can solve this problem?

Thanks,
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[gem5-users] Re: Running parallel version of a CPU benchmark on multiple cores

[John Smith via gem5-users]

Hi,

I am running gem5 with the Gpu model and I am running a Cpu and Gpu
benchmarks simultaneously.

for GPU: 2D Convolution from polybench-gpu.
I have 1+1 Cpus to handle the Gpu's thread launches. Apparently the ROCM
runtime launches an extra thread, so an extra thread is needed (Credit:
Matt Sinclair).
for CPU: running parsec.raytrace (with pthreads and m5thread linked) with 2
threads so I have 2+1 cpus for the CPU benchmark.
My apu_se.py is set up as follows:
...
pid_cnt = 100
cpu_list[0].workload = Process(executable = executable, cmd = [options.cmd]
+ options.options.split(), drivers = [gpu_driver], env =
env, pid=pid_cnt)
cpu_list[0].createThreads()

cpu_list[1].workload = cpu_list[0].workload
cpu_list[1].createThreads()


pid_cnt = 101
process = Process(executable = options.cpu_bench_bin, cmd =
[options.cpu_bench_bin]
+ options.cpu_benchmark_args.split(), env = env, pid=pid_cnt)

cpu_list[2].workload = process
cpu_list[2].createThreads()
cpu_list[3].workload = process
cpu_list[3].createThreads()
cpu_list[4].workload = process
cpu_list[4].createThreads()
...

But, when I look at the generated stats, I can see that Cpu instructions
are committed (non-zero), but Gpu insts committed are 0.
By running 2D Convolution by itself (1+1 cpus) and a trivial cpu benchmark
with no threads, I can see non-zero Gpu insts committed.
What could be the reason for this ?

Thank You,
John Smith
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[gem5-users] Re: DRAMCTRL self-refresh frequency

[Liyichao via gem5-users]

Thanks。my tRFI is 360ns，my tRFC is 0.682ns






李翼超 charlie
Mobile：+86-15858232899
Email：liyic...@huawei.com


发件人： lsteiner--- via gem5-usersmailto:gem5-users@gem5.org>>
收件人： gem5-usersmailto:gem5-users@gem5.org>>
抄送： lsteinermailto:lstei...@rhrk.uni-kl.de>>
主题： [gem5-users] Re: DRAMCTRL self-refresh frequency
时间： 2021-04-19 21:27:59

The refresh rate is determined by the parameter tREFI in 
"mem/DRAMInterface.py". However, if you want a refresh rate of 64 ms you cannot 
simply set tREFI to 64 ms. tREFI is the time between two refresh commands, 
while 64 ms usually is the time between two refresh commands to the same DRAM 
cell.  Depending on the selected device size and temperature range you have to 
set different values for tREFI and tRFC. You can find more information in the 
JEDEC standard for DDR4.

The self-refresh frequency is not determined by the DRAM controller, but by the 
DRAM device itself. This parameter cannot be modified via configuration. The 
only parameter you can modify is tXS (self-refresh exit time). For more 
information you should also take a look at the JEDEC standard.
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[gem5-users] Re: DRAMCTRL self-refresh frequency

[lsteiner--- via gem5-users]

The refresh rate is determined by the parameter tREFI in 
"mem/DRAMInterface.py". However, if you want a refresh rate of 64 ms you cannot 
simply set tREFI to 64 ms. tREFI is the time between two refresh commands, 
while 64 ms usually is the time between two refresh commands to the same DRAM 
cell.  Depending on the selected device size and temperature range you have to 
set different values for tREFI and tRFC. You can find more information in the 
JEDEC standard for DDR4. 

The self-refresh frequency is not determined by the DRAM controller, but by the 
DRAM device itself. This parameter cannot be modified via configuration. The 
only parameter you can modify is tXS (self-refresh exit time). For more 
information you should also take a look at the JEDEC standard.
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[gem5-users] DRAMCTRL self-refresh frequency

[Liyichao via gem5-users]

Hi all:

 In GEM5, where can I modify the self refresh frequency or refresh rate 
in dramctrl? My DRAM is DDR4 2933MHz.
e.g. I want to modify the self refresh frequency or rate to 32ms or 
64ms(32Hz or 64Hz).


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[gem5-users] Re: Error while installing gem 5

[ahmad sedigh via gem5-users]

Hello,
At this stage you should just press enter and continue.
The warning is negligible.

Ahmad

On Mon, Apr 19, 2021 at 1:55 PM VAIDYA ROHINI VILAS via gem5-users <
gem5-users@gem5.org> wrote:

> Hello ,
> I am trying to download gem5 in my new system having ubuntu version 20.04
> using "git clone https://github.com/gem5/gem5.git
> " . I also tried from official
> documentation of gem 5 but while building gem5 using  command  "*scons
> build/ARM/gem5.opt -j5"*   i am getting error as
>
> * "Scons: Reading SConscript files ... You're missing the gem5 style or
> commit message hook. These hooks help to ensure that your code follows
> gem5's style rules on git commit. This script will now install the hook in
> your .git/hooks/ directory. Press enter to continue, or ctrl-c to abort:  "
> *Please help me to solve this error ASAP.
> Thank you.
>
>
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[gem5-users] Re: Error while installing gem 5

[Hoa Nguyen via gem5-users]

Hi,

The message is not an error. It means that if you press enter, the git
commit hook will be installed and then gem5 will be compiled; while
ctrl+c will exit the compiling program.

Regards,
Hoa Nguyen

On 4/19/21, VAIDYA ROHINI VILAS  wrote:
> Hello ,
> I am trying to download gem5 in my new system having ubuntu version 20.04
> using "git clone
> https://github.com/gem5/gem5.git" . I also
> tried from official documentation of gem 5 but while building gem5 using
> command  "scons build/ARM/gem5.opt -j5"   i am getting error as "Scons:
> Reading SConscript files ...
>
> You're missing the gem5 style or commit message hook. These hooks help
> to ensure that your code follows gem5's style rules on git commit.
> This script will now install the hook in your .git/hooks/ directory.
> Press enter to continue, or ctrl-c to abort:  "
> Please help me to solve this error ASAP.
> Thank you.
>
>
>
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[gem5-users] Error while installing gem 5

[VAIDYA ROHINI VILAS via gem5-users]

Hello ,
I am trying to download gem5 in my new system having ubuntu version 20.04 using 
"git clone https://github.com/gem5/gem5.git" 
. I also tried from official documentation of gem 5 but while building gem5 
using  command  "scons build/ARM/gem5.opt -j5"   i am getting error as "Scons: 
Reading SConscript files ...

You're missing the gem5 style or commit message hook. These hooks help
to ensure that your code follows gem5's style rules on git commit.
This script will now install the hook in your .git/hooks/ directory.
Press enter to continue, or ctrl-c to abort:  "
Please help me to solve this error ASAP.
Thank you.


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