assembly and resolution time

On Mon, Mar 21, 2011 at 08:58:56AM -0000, Dupront wrote:
> New question #149875 on DOLFIN:
> https://answers.launchpad.net/dolfin/+question/149875
>
> Hello,
>
> I am a new fenics user.
> It is really amazing !

Thanks.

> I am running the Hyperelastic demo and I would like
> to know the assembly and resolution times.
> Could somebody help me with this matter ?

What do you mean? Do you need timings for the different steps?

You can call the command summary() at the end of your program to get
some information.

--
Anders

> > I am running the Hyperelastic demo and I would like
> > to know the assembly and resolution times.
> > Could somebody help me with this matter ?
>
> What do you mean? Do you need timings for the different steps?
>
> You can call the command summary() at the end of your program to get
> some information.
>

 Thank you very much for your promt answer.

 Yes I meant timing for the different steps including assembly and resolution.

Using the command summary() I get what follows.
Is there a documentation that explain the meaning of Reps.
Regarding newton I understand that Reps=5 means 5
newton iterations.
But I don't understand what Reps=11 means for Assemble
cells. Is the matrix updated at each newton iteration ?

 Summary of timings | Average time Total time Reps
-------------------------------------------------------------
Assemble cells | 0.052189 0.57408 11
Assemble exterior facets | 0.0026364 0.015818 6
Build sparsity | 0.0035736 0.025015 7
Delete sparsity | 8.7476e-07 6.1233e-06 7
Init dofmap | 0.0020095 0.0040191 2
Init tensor | 7.0271e-05 0.0004919 7
LU solver | 0.34523 1.7262 5
compute connectivity 0 - 3 | 0.001205 0.001205 1
compute connectivity 2 - 3 | 0.00095892 0.00095892 1
compute connectivity 3 - 3 | 0.030152 0.030152 1
compute entities dim = 2 | 0.099474 0.099474 1

> To: <email address hidden>
> From: <email address hidden>
> Subject: Re: [Dolfin] [Question #149875]: assembly and resolution time
> Date: Mon, 21 Mar 2011 09:15:38 +0000
>
> Your question #149875 on DOLFIN changed:
> https://answers.launchpad.net/dolfin/+question/149875
>
> Status: Open => Answered
>
> Anders Logg proposed the following answer:
> On Mon, Mar 21, 2011 at 08:58:56AM -0000, Dupront wrote:
> > New question #149875 on DOLFIN:
> > https://answers.launchpad.net/dolfin/+question/149875
> >
> > Hello,
> >
> > I am a new fenics user.
> > It is really amazing !
>
> Thanks.
>
> > I am running the Hyperelastic demo and I would like
> > to know the assembly and resolution times.
> > Could somebody help me with this matter ?
>
> What do you mean? Do you need timings for the different steps?
>
> You can call the command summary() at the end of your program to get
> some information.
>
> --
> Anders
>
> --
> If this answers your question, please go to the following page to let us
> know that it is solved:
> https://answers.launchpad.net/dolfin/+question/149875/+confirm?answer_id=0
>
> If you still need help, you can reply to this email or go to the
> following page to enter your feedback:
> https://answers.launchpad.net/dolfin/+question/149875
>
> You received this question notification because you are a direct
> subscriber of the question.

On Monday March 21 2011 07:45:30 Dupront wrote:
> Question #149875 on DOLFIN changed:
> https://answers.launchpad.net/dolfin/+question/149875
>
> Status: Answered => Open
>
> Dupront is still having a problem:
> > > I am running the Hyperelastic demo and I would like
> > > to know the assembly and resolution times.
> > > Could somebody help me with this matter ?
> >
> > What do you mean? Do you need timings for the different steps?
> >
> > You can call the command summary() at the end of your program to get
> > some information.
>
> Thank you very much for your promt answer.
>
> Yes I meant timing for the different steps including assembly and
> resolution.
>
> Using the command summary() I get what follows.
> Is there a documentation that explain the meaning of Reps.
> Regarding newton I understand that Reps=5 means 5
> newton iterations.
> But I don't understand what Reps=11 means for Assemble
> cells.

This is the number of times integrals over cells have been assembled.

> Is the matrix updated at each newton iteration ?

Yes.

Johan

>
> Summary of timings | Average time Total time Reps
> -------------------------------------------------------------
> Assemble cells | 0.052189 0.57408 11
> Assemble exterior facets | 0.0026364 0.015818 6
> Build sparsity | 0.0035736 0.025015 7
> Delete sparsity | 8.7476e-07 6.1233e-06 7
> Init dofmap | 0.0020095 0.0040191 2
> Init tensor | 7.0271e-05 0.0004919 7
> LU solver | 0.34523 1.7262 5
> compute connectivity 0 - 3 | 0.001205 0.001205 1
> compute connectivity 2 - 3 | 0.00095892 0.00095892 1
> compute connectivity 3 - 3 | 0.030152 0.030152 1
> compute entities dim = 2 | 0.099474 0.099474 1
>
> > To: <email address hidden>
> > From: <email address hidden>
> > Subject: Re: [Dolfin] [Question #149875]: assembly and resolution time
> > Date: Mon, 21 Mar 2011 09:15:38 +0000
> >
> > Your question #149875 on DOLFIN changed:
> > https://answers.launchpad.net/dolfin/+question/149875
> >
> > Status: Open => Answered
> >
> > Anders Logg proposed the following answer:
> >
> > On Mon, Mar 21, 2011 at 08:58:56AM -0000, Dupront wrote:
> > > New question #149875 on DOLFIN:
> > > https://answers.launchpad.net/dolfin/+question/149875
> > >
> > > Hello,
> > >
> > > I am a new fenics user.
> > > It is really amazing !
> >
> > Thanks.
> >
> > > I am running the Hyperelastic demo and I would like
> > > to know the assembly and resolution times.
> > > Could somebody help me with this matter ?
> >
> > What do you mean? Do you need timings for the different steps?
> >
> > You can call the command summary() at the end of your program to get
> > some information.
> >
> > --
> > Anders
>
> You received this question notification because you are a member of
> DOLFIN Team, which is an answer contact for DOLFIN.
>
> _______________________________________________
> Mailing list: https://launchpad.net/~dolfin
> Post to : <email address hidden>
> Unsubscribe : https://launchpad.net/~dolfin
> More help : https://help.launchpad.net/ListHelp

> > But I don't understand what Reps=11 means for Assemble
> > cells.
>
> This is the number of times integrals over cells have been assembled.

Thank you !
Why 11 times ?

So the cost of an newton iteration is mainly 1 time "Assemble cells" plus 1 time LU Solver.

> To: <email address hidden>
> From: <email address hidden>
> Subject: Re: [Dolfin] [Question #149875]: assembly and resolution time
> Date: Mon, 21 Mar 2011 15:03:16 +0000
>
> Your question #149875 on DOLFIN changed:
> https://answers.launchpad.net/dolfin/+question/149875
>
> Status: Open => Answered
>
> Johan Hake proposed the following answer:
> On Monday March 21 2011 07:45:30 Dupront wrote:
> > Question #149875 on DOLFIN changed:
> > https://answers.launchpad.net/dolfin/+question/149875
> >
> > Status: Answered => Open
> >
> > Dupront is still having a problem:
> > > > I am running the Hyperelastic demo and I would like
> > > > to know the assembly and resolution times.
> > > > Could somebody help me with this matter ?
> > >
> > > What do you mean? Do you need timings for the different steps?
> > >
> > > You can call the command summary() at the end of your program to get
> > > some information.
> >
> > Thank you very much for your promt answer.
> >
> > Yes I meant timing for the different steps including assembly and
> > resolution.
> >
> > Using the command summary() I get what follows.
> > Is there a documentation that explain the meaning of Reps.
> > Regarding newton I understand that Reps=5 means 5
> > newton iterations.
> > But I don't understand what Reps=11 means for Assemble
> > cells.
>
> This is the number of times integrals over cells have been assembled.
>
> > Is the matrix updated at each newton iteration ?
>
> Yes.
>
> Johan
>
> >
> > Summary of timings | Average time Total time Reps
> > -------------------------------------------------------------
> > Assemble cells | 0.052189 0.57408 11
> > Assemble exterior facets | 0.0026364 0.015818 6
> > Build sparsity | 0.0035736 0.025015 7
> > Delete sparsity | 8.7476e-07 6.1233e-06 7
> > Init dofmap | 0.0020095 0.0040191 2
> > Init tensor | 7.0271e-05 0.0004919 7
> > LU solver | 0.34523 1.7262 5
> > compute connectivity 0 - 3 | 0.001205 0.001205 1
> > compute connectivity 2 - 3 | 0.00095892 0.00095892 1
> > compute connectivity 3 - 3 | 0.030152 0.030152 1
> > compute entities dim = 2 | 0.099474 0.099474 1
> >
> > > To: <email address hidden>
> > > From: <email address hidden>
> > > Subject: Re: [Dolfin] [Question #149875]: assembly and resolution time
> > > Date: Mon, 21 Mar 2011 09:15:38 +0000
> > >
> > > Your question #149875 on DOLFIN changed:
> > > https://answers.launchpad.net/dolfin/+question/149875
> > >
> > > Status: Open => Answered
> > >
> > > Anders Logg proposed the following answer:
> > >
> > > On Mon, Mar 21, 2011 at 08:58:56AM -0000, Dupront wrote:
> > > > New question #149875 on DOLFIN:
> > > > https://answers.launchpad.net/dolfin/+question/149875
> > > >
> > > > Hello,
> > > >
> > > > I am a new fenics user.
> > > > It is really amazing !
> > >
> > > Thanks.
> > >
> > > > I am running the Hyperelastic demo and I would like
> > > > to know the assembly and resolution times.
> > > > Could somebody help me with this matter ?
> > >
> > > What do you mean? Do you need timings for the different steps?
> > >
> > > You can call the command summary() at the end of your program to get
> > > some information.
> > >
> > > --
> > > Anders
> >
> > You received this question notification because you are a member of
> > DOLFIN Team, which is an answer contact for DOLFIN.
> >
> > _______________________________________________
> > Mailing list: https://launchpad.net/~dolfin
> > Post to : <email address hidden>
> > Unsubscribe : https://launchpad.net/~dolfin
> > More help : https://help.launchpad.net/ListHelp
>
> --
> If this answers your question, please go to the following page to let us
> know that it is solved:
> https://answers.launchpad.net/dolfin/+question/149875/+confirm?answer_id=2
>
> If you still need help, you can reply to this email or go to the
> following page to enter your feedback:
> https://answers.launchpad.net/dolfin/+question/149875
>
> You received this question notification because you are a direct
> subscriber of the question.

On Mon, Mar 21, 2011 at 03:15:37PM -0000, Dupront wrote:
> Question #149875 on DOLFIN changed:
> https://answers.launchpad.net/dolfin/+question/149875
>
> Status: Answered => Open
>
> Dupront is still having a problem:
>
> > > But I don't understand what Reps=11 means for Assemble
> > > cells.
> >
> > This is the number of times integrals over cells have been assembled.
>
>
> Thank you !
> Why 11 times ?

I suspect 2 x 5 assemblies of the Jacobian matrix and residual vector
+ a final assembly of the residual vector to check for convergence.

> So the cost of an newton iteration is mainly 1 time "Assemble cells" plus 1 time LU Solver.

Yes, but no necessarily LU. You can choose another solver.

--
Anders

> > To: <email address hidden>
> > From: <email address hidden>
> > Subject: Re: [Dolfin] [Question #149875]: assembly and resolution time
> > Date: Mon, 21 Mar 2011 15:03:16 +0000
> >
> > Your question #149875 on DOLFIN changed:
> > https://answers.launchpad.net/dolfin/+question/149875
> >
> > Status: Open => Answered
> >
> > Johan Hake proposed the following answer:
> > On Monday March 21 2011 07:45:30 Dupront wrote:
> > > Question #149875 on DOLFIN changed:
> > > https://answers.launchpad.net/dolfin/+question/149875
> > >
> > > Status: Answered => Open
> > >
> > > Dupront is still having a problem:
> > > > > I am running the Hyperelastic demo and I would like
> > > > > to know the assembly and resolution times.
> > > > > Could somebody help me with this matter ?
> > > >
> > > > What do you mean? Do you need timings for the different steps?
> > > >
> > > > You can call the command summary() at the end of your program to get
> > > > some information.
> > >
> > > Thank you very much for your promt answer.
> > >
> > > Yes I meant timing for the different steps including assembly and
> > > resolution.
> > >
> > > Using the command summary() I get what follows.
> > > Is there a documentation that explain the meaning of Reps.
> > > Regarding newton I understand that Reps=5 means 5
> > > newton iterations.
> > > But I don't understand what Reps=11 means for Assemble
> > > cells.
> >
> > This is the number of times integrals over cells have been assembled.
> >
> > > Is the matrix updated at each newton iteration ?
> >
> > Yes.
> >
> > Johan
> >
> > >
> > > Summary of timings | Average time Total time Reps
> > > -------------------------------------------------------------
> > > Assemble cells | 0.052189 0.57408 11
> > > Assemble exterior facets | 0.0026364 0.015818 6
> > > Build sparsity | 0.0035736 0.025015 7
> > > Delete sparsity | 8.7476e-07 6.1233e-06 7
> > > Init dofmap | 0.0020095 0.0040191 2
> > > Init tensor | 7.0271e-05 0.0004919 7
> > > LU solver | 0.34523 1.7262 5
> > > compute connectivity 0 - 3 | 0.001205 0.001205 1
> > > compute connectivity 2 - 3 | 0.00095892 0.00095892 1
> > > compute connectivity 3 - 3 | 0.030152 0.030152 1
> > > compute entities dim = 2 | 0.099474 0.099474 1
> > >
> > > > To: <email address hidden>
> > > > From: <email address hidden>
> > > > Subject: Re: [Dolfin] [Question #149875]: assembly and resolution time
> > > > Date: Mon, 21 Mar 2011 09:15:38 +0000
> > > >
> > > > Your question #149875 on DOLFIN changed:
> > > > https://answers.launchpad.net/dolfin/+question/149875
> > > >
> > > > Status: Open => Answered
> > > >
> > > > Anders Logg proposed the following answer:
> > > >
> > > > On Mon, Mar 21, 2011 at 08:58:56AM -0000, Dupront wrote:
> > > > > New question #149875 on DOLFIN:
> > > > > https://answers.launchpad.net/dolfin/+question/149875
> > > > >
> > > > > Hello,
> > > > >
> > > > > I am a new fenics user.
> > > > > It is really amazing !
> > > >
> > > > Thanks.
> > > >
> > > > > I am running the Hyperelastic demo and I would like
> > > > > to know the assembly and resolution times.
> > > > > Could somebody help me with this matter ?
> > > >
> > > > What do you mean? Do you need timings for the different steps?
> > > >
> > > > You can call the command summary() at the end of your program to get
> > > > some information.
> > > >
> > >
> > > You received this question notification because you are a member of
> > > DOLFIN Team, which is an answer contact for DOLFIN.
> > >
> > > _______________________________________________
> > > Mailing list: https://launchpad.net/~dolfin
> > > Post to : <email address hidden>
> > > Unsubscribe : https://launchpad.net/~dolfin
> > > More help : https://help.launchpad.net/ListHelp
> >
>
> You received this question notification because you are a member of
> DOLFIN Team, which is an answer contact for DOLFIN.
>
> _______________________________________________
> Mailing list: https://launchpad.net/~dolfin
> Post to : <email address hidden>
> Unsubscribe : https://launchpad.net/~dolfin
> More help : https://help.launchpad.net/ListHelp

Oh yes !
Thank you very much !

> To: <email address hidden>
> From: <email address hidden>
> Subject: Re: [Dolfin] [Question #149875]: assembly and resolution time
> Date: Mon, 21 Mar 2011 15:24:22 +0000
>
> Your question #149875 on DOLFIN changed:
> https://answers.launchpad.net/dolfin/+question/149875
>
> Johan Hake proposed the following answer:
> On Monday March 21 2011 08:15:37 Dupront wrote:
> > Question #149875 on DOLFIN changed:
> > https://answers.launchpad.net/dolfin/+question/149875
> >
> > Status: Answered => Open
> >
> > Dupront is still having a problem:
> > > > But I don't understand what Reps=11 means for Assemble
> > > > cells.
> > >
> > > This is the number of times integrals over cells have been assembled.
> >
> > Thank you !
> > Why 11 times ?
> >
> > So the cost of an newton iteration is mainly 1 time "Assemble cells" plus 1
> > time LU Solver.
>
> The cost per Newton iteration for the Hyperelastisity demo is:
>
> 1x assemble bilinear (Matrix) over cells
> 1x assemble linear (Vector) over cells
> 1x linear solve
>
> + 1 inital assemble linear (Vector) over cells.
>
> 5 Newton iterations = 11 assemble over cells.
>
> Johan
>
> > > To: <email address hidden>
> > > From: <email address hidden>
> > > Subject: Re: [Dolfin] [Question #149875]: assembly and resolution time
> > > Date: Mon, 21 Mar 2011 15:03:16 +0000
> > >
> > > Your question #149875 on DOLFIN changed:
> > > https://answers.launchpad.net/dolfin/+question/149875
> > >
> > > Status: Open => Answered
> > >
> > > Johan Hake proposed the following answer:
> > >
> > > On Monday March 21 2011 07:45:30 Dupront wrote:
> > > > Question #149875 on DOLFIN changed:
> > > > https://answers.launchpad.net/dolfin/+question/149875
> > > >
> > > > Status: Answered => Open
> > > >
> > > > Dupront is still having a problem:
> > > > > > I am running the Hyperelastic demo and I would like
> > > > > > to know the assembly and resolution times.
> > > > > > Could somebody help me with this matter ?
> > > > >
> > > > > What do you mean? Do you need timings for the different steps?
> > > > >
> > > > > You can call the command summary() at the end of your program to get
> > > > > some information.
> > > >
> > > > Thank you very much for your promt answer.
> > > >
> > > > Yes I meant timing for the different steps including assembly and
> > > > resolution.
> > > >
> > > > Using the command summary() I get what follows.
> > > > Is there a documentation that explain the meaning of Reps.
> > > > Regarding newton I understand that Reps=5 means 5
> > > > newton iterations.
> > > > But I don't understand what Reps=11 means for Assemble
> > > > cells.
> > >
> > > This is the number of times integrals over cells have been assembled.
> > >
> > > > Is the matrix updated at each newton iteration ?
> > >
> > > Yes.
> > >
> > > Johan
> > >
> > > > Summary of timings | Average time Total time Reps
> > > > -------------------------------------------------------------
> > > > Assemble cells | 0.052189 0.57408 11
> > > > Assemble exterior facets | 0.0026364 0.015818 6
> > > > Build sparsity | 0.0035736 0.025015 7
> > > > Delete sparsity | 8.7476e-07 6.1233e-06 7
> > > > Init dofmap | 0.0020095 0.0040191 2
> > > > Init tensor | 7.0271e-05 0.0004919 7
> > > > LU solver | 0.34523 1.7262 5
> > > > compute connectivity 0 - 3 | 0.001205 0.001205 1
> > > > compute connectivity 2 - 3 | 0.00095892 0.00095892 1
> > > > compute connectivity 3 - 3 | 0.030152 0.030152 1
> > > > compute entities dim = 2 | 0.099474 0.099474 1
> > > >
> > > > > To: <email address hidden>
> > > > > From: <email address hidden>
> > > > > Subject: Re: [Dolfin] [Question #149875]: assembly and resolution
> > > > > time Date: Mon, 21 Mar 2011 09:15:38 +0000
> > > > >
> > > > > Your question #149875 on DOLFIN changed:
> > > > > https://answers.launchpad.net/dolfin/+question/149875
> > > > >
> > > > > Status: Open => Answered
> > > > >
> > > > > Anders Logg proposed the following answer:
> > > > >
> > > > > On Mon, Mar 21, 2011 at 08:58:56AM -0000, Dupront wrote:
> > > > > > New question #149875 on DOLFIN:
> > > > > > https://answers.launchpad.net/dolfin/+question/149875
> > > > > >
> > > > > > Hello,
> > > > > >
> > > > > > I am a new fenics user.
> > > > > > It is really amazing !
> > > > >
> > > > > Thanks.
> > > > >
> > > > > > I am running the Hyperelastic demo and I would like
> > > > > > to know the assembly and resolution times.
> > > > > > Could somebody help me with this matter ?
> > > > >
> > > > > What do you mean? Do you need timings for the different steps?
> > > > >
> > > > > You can call the command summary() at the end of your program to get
> > > > > some information.
> > > > >
> > > > > --
> > > > > Anders
> > > >
> > > > You received this question notification because you are a member of
> > > > DOLFIN Team, which is an answer contact for DOLFIN.
> > > >
> > > > _______________________________________________
> > > > Mailing list: https://launchpad.net/~dolfin
> > > > Post to : <email address hidden>
> > > > Unsubscribe : https://launchpad.net/~dolfin
> > > > More help : https://help.launchpad.net/ListHelp
> >
> > You received this question notification because you are a member of
> > DOLFIN Team, which is an answer contact for DOLFIN.
> >
> > _______________________________________________
> > Mailing list: https://launchpad.net/~dolfin
> > Post to : <email address hidden>
> > Unsubscribe : https://launchpad.net/~dolfin
> > More help : https://help.launchpad.net/ListHelp
>
> --
> If this answers your question, please go to the following page to let us
> know that it is solved:
> https://answers.launchpad.net/dolfin/+question/149875/+confirm?answer_id=5
>
> If you still need help, you can reply to this email or go to the
> following page to enter your feedback:
> https://answers.launchpad.net/dolfin/+question/149875
>
> You received this question notification because you are a direct
> subscriber of the question.

This question was expired because it remained in the 'Open' state without activity for the last 15 days.

.

Thanks Johan Hake, that solved my question.