ADAPTIVE AND INTEGRATED VISUALIZATION OF SPATIOTEMPORAL DATA FROM LARGE-SCALE SIMULATIONS

• US 20110182349A1
• Filed: 01/27/2010
• Published: 07/28/2011
• Est. Priority Date: 01/27/2010
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Ananthanarayanan, Rajagopal, Chandra, Shyamal S., Modha, Dharmendra S., Singh, Raghavendra
• Granted Patent: US 8,699,566 B2
• Time in Patent Office: Days
• US Class Current: 375/240.01
• CPC Class Codes: G06N 3/049 Temporal neural networks, e.g. delay elements, oscillating neurons or pulsed inputs
• CPC Class Codes: G06T 11/206 Drawing of charts or graphs
• CPC Class Codes: G11B 27/10 Indexing; Addressing; Timing or synchronising; Measuring tape travel
• CPC Class Codes: G11B 27/34 Indicating arrangements indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D

Abstract

Adaptive and integrated visualization of spatiotemporal data from large-scale simulation, is provided. A simulation is performed utilizing a simulator comprising multiple processors, generating spatiotemporal data samples from the simulation. Each data sample has spatial coordinates with a time stamp at a specific time resolution, and a tag. The data samples are assembled into data streams based on at least one of a spatial relationship and the corresponding tag. Each data stream is encoded into multiple formats, and an integrated and adaptive visualization of the data streams is displayed, wherein various data streams are simultaneously and synchronously displayed.

Claims

1. A method for presenting data from a simulation on a display screen, comprising:

performing a simulation utilizing a simulator comprising multiple processors;

generating spatiotemporal data samples from the simulation, wherein each data sample has spatial coordinates with a time stamp at a specific time resolution;

assembling the data samples into data streams based on a least one of;

a spatial relationship and tags associated with data samples;

encoding each data stream into multiple formats; and

displaying an integrated and adaptive visualization of the data streams, wherein various data streams are simultaneously and synchronously displayed.

2. The method of claim 1, wherein for each data sample spatial relationships are defined over a k-dimensional grid.

3. The method of claim 2, wherein each data sample further includes a tag to identify the data sample.

4. The method of claim 3, wherein encoding each data stream further comprises assembling said data samples into data streams based on at least one of:

the spatial relationship and their tag.

5. The method of claim 4, further comprising:

changing the number of data streams being displayed at run-time, for enabling a user to tailor the visualization according to the simulation experiment.

6. The method of claim 5, wherein encoding each data stream further comprises performing two-dimensional color-mapping visualization of the data samples based on spatial coordinate, time stamp and value of each data sample.

7. The method of claim 6, wherein encoding each data stream further comprises:

segregating the data samples into data streams corresponding to different sheets on a display grid, and generating a video stream for each sheet, wherein all data values at a time instance are mapped to a frame of the video stream, such that a pixel of the frame represents a grid position and color of the pixel encodes the data value at that time instance.

8. The method of claim 6, wherein:

generating spatiotemporal data samples from the simulation further comprises storing the data samples from each processor in a storage;

assembling the data samples into data streams further comprises reading said stored data samples from different processors and assembling the data samples into data streams based on a least one of;

a spatial relationship and tags associated with data samples; and

encoding each data stream further comprises displaying the data streams as a time-series plot representing the value of data samples at previous X timesteps, wherein the number of previous timesteps can be specified by the user.

9. A computer program product for presenting data from a simulation on a display screen, the computer program product comprising:

a computer usable medium having computer readable program code embodied therewith, computer readable program code comprising;

computer readable program code configured to perform a simulation utilizing a simulator comprising multiple processors;

computer readable program code configured to generate spatiotemporal data samples from the simulation, wherein each data sample has spatial coordinates with a time stamp and a specific time resolution;

computer readable program code configured to assemble the data samples into data streams based on a least one of;

a spatial relationship and tags associated with data samples;

computer readable program code configured to encode each data stream into multiple formats; and

computer readable program code to display an integrated and adaptive visualization of the data streams, wherein various data streams are simultaneously and synchronously displayed.

10. The computer program product of claim 9, wherein for each data sample spatial relationships are defined over a k-dimensional grid.

11. The computer program product of claim 10, wherein each data sample further includes tags associated therewith to identify the data samples.

12. The computer program product of claim 11, further comprising computer readable program code configured to encode each data stream by assembling said data samples into data streams based on at least:

a spatial relationship and their tags.

13. The computer program product of claim 12, further comprising computer readable program code configured to allow the number of data streams being displayed to be changed at run-time, thereby enabling a user to tailor the visualization according to the simulation experiment.

14. The computer program product of claim 13, further comprising:

computer readable program code configured to encode each data stream into multiple formats by performing two-dimensional color-mapping visualization of the data samples based on spatial coordinates and time stamp of each data sample;

computer readable program code configured to segregate the data samples into data streams corresponding to different sheets on a display grid, and generate for display a video stream for each sheet in a grid wherein all data values at a time instance are mapped to an frame of a video stream where a pixel of a frame represents a grid position and color of the pixel encodes the data value at that time instance;

computer readable program code configured to display the data streams as a time-series plot representing the value of data samples at previous X timesteps, wherein the number of previous timesteps can be specified by the user; and

computer readable program code configured to provide synchronous playback between various data streams.

15. A system for presenting data from a simulation on a display screen, comprising:

a simulator comprising multiple processors configured for performing a simulation and generating spatiotemporal data samples from the simulation and storing the data samples from each processor in storage, wherein each data sample has spatial coordinates with a time stamp and a specific time resolution;

an encoder configured for reading said stored data samples from different processors, assembling the data samples into data streams based on a spatial relationship, and encoding each data stream into multiple formats; and

a visualizer configured for displaying an integrated and adaptive visualization of the data streams, wherein various data streams are simultaneously and synchronously displayed.

16. The system of claim 15, wherein each data sample has spatial coordinates with a time stamp and a specific time resolution, such that spatial relationships are defined over a k-dimensional grid.

17. The system of claim 16, wherein the encoder is further configured for encoding each data stream by assembling said data samples into data streams based on at least one of:

a spatial relationship and tags associated with the data sample.

18. The system of claim 17, wherein the visualizer is further configured such that number of data streams being displayed can be changed at run-time, thereby enabling a user to tailor the visualization according to the simulation experiment.

19. The system of claim 18, wherein:

the encoder is further configured for encoding each data stream into multiple formats by performing two-dimensional color-mapping visualization of the data samples based on spatial coordinates and time stamp of each data sample; and

the visualizer is further configured for;

segregating the data samples into data streams corresponding to different sheets on a display grid, and generating a video stream for each sheet in a grid wherein all data values at a time instance are mapped to an frame of a video stream where a pixel of a frame represents a grid position and color of the pixel encodes the data value at that time instance; and

displaying the data streams as a time-series plot representing the value of data samples at previous X timesteps, wherein the number of previous timesteps can be specified by the user; and

providing synchronous playback between various data streams.

20. The system of claim 19, wherein the simulator comprises a cortical simulator.