log lookup names

SL-toi

Name	Strain Limiting Time of Impact
Format	list[(vid_time,float)]
Description	Time of impact (TOI) per Newton’s step, encoding the maximal feasible step size without exceeding strain limits.

avg-sigma

Name	Average Stretch
Format	list[(vid_time,float)]
Description	Average stretch of all the shell elements in the scene. If the average stretch is 2%, the recorded value is 1.02.

contact-mat-finalize

Name	Time for Filializing Contact Matrix
Format	list[(vid_time,ms)]
Description	After the fill-in pass, the contact matrix is compressed to eliminate redundant entries.

contact-mat-rebuild

Name	Time for Rebuilding Memory Layout for Contact Matrix
Format	list[(vid_time,ms)]
Description	After the dry pass, the memory layout for the contact matrix is re-computed so that the matrix can be assembled in the fill-in pass.

contact-matrix-assembly

Name	Contact Matrix Assembly Time
Format	list[(vid_time,ms)]
Description	Time spent in contact matrix assembly.

dry-pass

Name	Dry Pass Time for Counting Matrix Nonzeros
Format	list[(vid_time,ms)]
Description	Time for a dry pass to count matrix nonzeros. This pass does not assemble the contact matrix.

dt

Name	Step Size
Format	list[(vid_time,float)]
Description	Target step size.

dyn-consumed

Name	Consumption Ratio of Dynamic Matrix Assembly Memory
Format	list[(vid_time,float)]
Description	The GPU memory for the dynamic matrix assembly for contact is pre-allocated. This consumed ratio is the ratio of the memory actually used for the dynamic matrix assembly. If the ratio exceeds 1.0, simulation runs out of memory. One may carefully monitor this value to determine how much memory is required for the simulation. This consumption is only related to contacts and does not affect elastic or inertia terms.

fillin-pass

Name	Fillin Pass Time for Assembling Contact Matrix
Format	list[(vid_time,ms)]
Description	Time spent in fill-in pass for assembling the contact matrix.

final-dt

Name	Final Step Size
Format	list[(vid_time,float)]
Description	Actual step size advanced in the simulation. For most of the cases, this value is the same as the step size specified in the parameter. However, the actual step size is reduced by toi_advanced and may be also reduced when the option enable_retry is set to true and the PCG fails.

frame-to-time

Name	Mapping of Video Frame to Simulation Time
Format	list[(int,ms)]
Description	This file contains a list of pairs encoding the mapping of video frame to the simulation time. The format is (frame) -> (ms), where frame is the video frame number and ms is the time of the simulation in milliseconds.

initial-check-intersection

Name	Initial Check Intersection Time
Format	list[(int,ms)]
Description	Time consumed to check if any intersection is detected at the beginning of the simulation. Only a single record is expected.

initialize

Name	Initialization Time
Format	list[(int,ms)]
Description	Time consumed for the initialization of the simulation. Only a single record is expected.

line-search

Name	Line Search Time
Format	list[(vid_time,ms)]
Description	Line search time per Newton’s step. CCD is performed to find the maximal feasible substep without collision.

matrix-assembly

Name	Matrix Assembly Time
Format	list[(vid_time,ms)]
Description	Time consumed for assembling the global matrix for the linear system solver per Newton’s step.

max-nnz-row

Name	Max Row Count for the Contact Matrix
Format	list[(vid_time,int)]
Description	Records the maximum row count for the contact matrix.

max-search-dir

Name	Maximal Magnitude of Search Direction
Format	list[(vid_time,float)]
Description	Maximum magnitude of the search direction in the Newton’s step.

max-sigma

Name	Max Stretch
Format	list[(vid_time,float)]
Description	Maximum stretch among all the shell elements in the scene. If the maximal stretch is 2%, the recorded value is 1.02.

max-velocity

Name	Max Velocity
Format	list[(vid_time,m/s)]
Description	Maximum velocity of all the vertices in the mesh.

newton-steps

Name	Total Count of Consumed Newton’s Steps
Format	list[(vid_time,int)]
Description	Total count of Newton’s steps consumed in the single step.

num-contact

Name	Total Contact Count
Format	list[(vid_time,int)]
Description	Maximal contact count at a Newton’s step.

pcg-iter

Name	Linear Solve Iteration Count
Format	list[(vid_time,int)]
Description	Count of the PCG linear solve iterations per Newton’s step.

pcg-linsolve

Name	Linear Solve Time
Format	list[(vid_time,ms)]
Description	Total PCG linear solve time per Newton’s step.

pcg-resid

Name	Linear Solve Relative Residual
Format	list[(vid_time,float)]
Description	Relative Residual of the PCG linear solve iterations per Newton’s step.

retry-count

Name	Total Retry Count
Format	list[(vid_time,int)]
Description	When the PCG fails or line search fails and enable_retry is set to true, the whole step is retried with a reduced time step. This count records the total number of retries.

rod-count

Name	Rod Count
Format	list[(vid_time,int)]
Description	Total edge rod element count in the scene. The format is time-dependent but should not change during the simulation.

runtime-intersection-check

Name	Time to Check Intersection
Format	list[(vid_time,ms)]
Description	At the end of step, an explicit intersection check is performed. This number records the consumed time in milliseconds.

shell-count

Name	Shell Count
Format	list[(vid_time,int)]
Description	Total triangular shell element count in the scene. The format is time-dependent but should not change during the simulation.

tet-count

Name	Tet Count
Format	list[(vid_time,int)]
Description	Total tetrahedral element count in the scene. The format is time-dependent but should not change during the simulation.

time-per-frame

Name	Time Per Video Frame
Format	list[(vid_time,ms)]
Description	Time consumed to compute a single video frame.

time-per-step

Name	Consumued Time Per Step
Format	list[(vid_time,ms)]
Description	Time per step in milliseconds. Note that our time step does not advance by a fixed time step, but a reduced one by the accumulated time of impact during the inner Newton loop.

toi

Name	Time of Impact
Format	list[(vid_time,float)]
Description	Time of impact (TOI) per Newton’s step, encoding the maximal feasible step size without collision or exceeding strain limits.

toi-advanced

Name	Advanced Fractional Step Size
Format	list[(vid_time,float)]
Description	This is an accumulated TOI of all the Newton’s steps. This number is multiplied by the time step to yield the actual step size advanced in the simulation.

total-shell-mass

Name	Total Shell Mass
Format	list[(vid_time,kg)]
Description	Total mass of all the shell elements in the scene. Should not change during the simulation.

total-solid-mass

Name	Total Solid Mass
Format	list[(vid_time,kg)]
Description	Total mass of all the tet elements in the scene. Should not change during the simulation.

triangle-count

Name	Triangle Count
Format	list[(vid_time,int)]
Description	Total triangular shell element count in the scene. The format is time-dependent but should not change during the simulation.

vertex-count

Name	Vertex Count
Format	list[(vid_time,int)]
Description	Total vertex count in the scene. The format is time-dependent but should not change during the simulation.