Geopsy-fk - Revision history

Marc: /* Single component high resolution FK */

2024-09-17T19:41:07Z

Single component high resolution FK

Marc: /* All-component ellipticity Rayleigh Direct Steering (ARDS) */

2024-01-30T16:12:00Z

All-component ellipticity Rayleigh Direct Steering (ARDS)

Marc: /* Rayleigh Three-component BeamForming (RTBF) */

2024-01-30T15:13:50Z

Rayleigh Three-component BeamForming (RTBF)

Marc: /* Love beam forming */

2024-01-30T15:13:33Z

Love beam forming

Marc: /* Rayleigh Three-component BeamForming (RTBF) */

2024-01-30T15:12:39Z

Rayleigh Three-component BeamForming (RTBF)

Marc: /* All-component ellipticity Rayleigh Direct Steering (ARDS) */

2024-01-30T15:10:37Z

All-component ellipticity Rayleigh Direct Steering (ARDS)

Marc: /* All-component ellipticity Rayleigh Direct Steering (ARDS) */

2024-01-30T15:09:03Z

All-component ellipticity Rayleigh Direct Steering (ARDS)

Marc: /* All-component ellipticity Rayleigh Direct Steering (ARDS) */

2024-01-30T15:08:32Z

All-component ellipticity Rayleigh Direct Steering (ARDS)

Marc: /* All-component ellipticity Rayleigh Direct Steering (ARDS) */

2024-01-30T15:08:16Z

All-component ellipticity Rayleigh Direct Steering (ARDS)

Marc: /* Single component conventional FK */

2024-01-30T14:41:42Z

Single component conventional FK

@@ Line 167: / Line 167: @@
 |-
 |Default, direct file access
-|Debian 11
+|Debian 11 (Qt 5)
 |4
 |1 min. 15 sec.

@@ Line 276: / Line 276: @@
 [[Image:Mirandola-ards.png|thumb|right|500px|Dispersion amd ellipticity curves for Rayleigh with ARDS.]]
-The method is described in Wathelet (2024) <ref name="Wathelet(2024)">Marc Wathelet, Incoherent noise-induced distortions of Rayleigh wave ellipticity measurements obtained with three-component beamforming, Geophysical Journal International, 2024, [https://doi.org/10.1093/gji/ggae017 10.1093/gji/ggae017]</ref>.
+The method is described in Wathelet (2024) <ref name="Wathelet(2024)">Marc Wathelet (2024). Incoherent noise-induced distortions of Rayleigh wave ellipticity measurements obtained with three-component beamforming, Geophysical Journal International, '''236'''(3), 1804-1827, [https://doi.org/10.1093/gji/ggae017 10.1093/gji/ggae017]</ref>.
    $ geopsy-fk -db Mirandola.gpy -group C_135_405-3C -param limits.param -set STATISTIC_MAX_OVERLAP=100 -set MINIMUM_FREQUENCY=0.5

@@ Line 331: / Line 331: @@
 |[https://www.geopsy.org/bigfiles/rtbf-C_135_405-3C.max max]
 |}
 == Love beam forming ==

← Older revision		Revision as of 15:13, 30 January 2024
Line 342:		Line 342:

	A group with only the two horizontal components is sufficient.		A group with only the two horizontal components is sufficient.
		+
		+	{\| border="1" cellpadding="5" cellspacing="0"
		+	! Parameters
		+	! Platform
		+	! Threads
		+	! CPU time
		+	! Results
		+	\|-
		+	\|limits.param, STATISTIC_MAX_OVERLAP=100
		+	\|Debian 11 (Qt 5)
		+	\|4
		+	\|4 min. 36 sec.
		+	\|[https://www.geopsy.org/bigfiles/capontransverse-C_135_405-3C.max max]
		+	\|}

	<br style="clear: both"/>		<br style="clear: both"/>

← Older revision		Revision as of 15:12, 30 January 2024
Line 317:		Line 317:

	$ geopsy-fk -db Mirandola.gpy -group C_135_405-3C -param limits.param -set PROCESS_TYPE=RTBF -set STATISTIC_MAX_OVERLAP=100 -set MINIMUM_FREQUENCY=0.5		$ geopsy-fk -db Mirandola.gpy -group C_135_405-3C -param limits.param -set PROCESS_TYPE=RTBF -set STATISTIC_MAX_OVERLAP=100 -set MINIMUM_FREQUENCY=0.5
		+
		+	{\| border="1" cellpadding="5" cellspacing="0"
		+	! Parameters
		+	! Platform
		+	! Threads
		+	! CPU time
		+	! Results
		+	\|-
		+	\|limits.param, STATISTIC_MAX_OVERLAP=100
		+	\|Debian 11 (Qt 5)
		+	\|4
		+	\|47 min. 45 sec.
		+	\|[https://www.geopsy.org/bigfiles/rtbf-C_135_405-3C.max max]
		+	\|}

	== Love beam forming ==		== Love beam forming ==

@@ Line 282: / Line 282: @@
 With only two hours, the default parameters lead to a minimum frequency of 1.27 Hz. Interesting information can be obtained below even if the number of phase velocity samples is lower than STATISTICAL_COUNT.
-A three-component processing is mush heavier than a single component processing. It sounds reasonable to run it on a HPC infrastructure (high performance computer) rather than a on laptop. A HPC has necessarily a task manager that distribute the cores among the running processes. By default, ''geopsy-fk'' is creating a number of threads equal to half of the available cores (equal to the number of physical cores excluding Hyper-threading). You can adjust manually this number with option '''-j <Nthreads>'''. Alternatively, you can use option '''-task-manager''' which assigns a CPU affinity to each thread. The number of CPU affinities available to your process is controlled by the task manager and indirectly by the number of requested cores for your job. One advantage of assigning a CPU affinity is that each thread is executed by one core during the whole process. On a usual laptop, a thread switches from one core to another several hundreds of times per job. A tiny gain in CPU time can be expected with option '''-task-manager''' on a laptop but only one ''geopsy-fk'' process can by run at time because they will share the same cores rather than being distributed on all cores.
+A three-component processing is mush heavier than a single component processing. It sounds reasonable to run it on a HPC infrastructure (high performance computer) rather than a on laptop. A HPC has necessarily a task manager that distribute the cores among the running processes. By default, ''geopsy-fk'' is creating a number of threads equal to half of the available cores (equal to the number of physical cores excluding Hyper-threading). You can adjust manually this number with option '''-j <Nthreads>'''. Alternatively, you can use option '''-task-manager''' which assigns a CPU affinity to each thread. The number of CPU affinities available to your process is controlled by the task manager and indirectly by the number of requested cores for your job. One advantage of assigning a CPU affinity is that each thread is executed by one core during the whole process. On a usual laptop, a thread switches from one core to another several hundreds of times per job. A tiny gain in CPU time can be expected with option '''-task-manager''' on a laptop but only one ''geopsy-fk'' process can by run at time because they will share the same cores rather than being distributed on all cores. Usually it is turned off.
    $ geopsy-fk -db Mirandola.gpy -group C_135_405-3C -param limits.param -set STATISTIC_MAX_OVERLAP=100 -set MINIMUM_FREQUENCY=0.5 -task-manager

@@ Line 280: / Line 280: @@
    $ geopsy-fk -db Mirandola.gpy -group C_135_405-3C -param limits.param -set STATISTIC_MAX_OVERLAP=100 -set MINIMUM_FREQUENCY=0.5
-With only two hours, the default parameters lead to a minimum frequency of 1.27 Hz. Interesting information can be obtained below even if the number of phase velocity samples is lower than STATISTICAL_COUNT.
+With only two hours, the default parameters lead to a minimum frequency of 1.27 Hz. Interesting information can be obtained below even if the number of phase velocity samples is lower than STATISTICAL_COUNT. A three-component processing is mush heavier than a single component processing. It sounds reasonable to run it on a HPC infrastructure (high performance computer) than a on laptop. A HPC has necessarily a task manager that distribute the cores among the running processes. By default, ''geopsy-fk'' is creating a number of threads equal to half of the available cores (equal to the number of physical cores excluding Hyper-threading). You can adjust manually this number with option '''-j <Nthreads>'''. Alternatively, you can use option '''-task-manager''' which assigns a CPU affinity to each thread. The number of CPU affinities available to your process is controlled by the task manager and indirectly by the number of requested cores for your job. One advantage of assigning a CPU affinity is that each thread is executed by one core during the whole process. On a usual laptop, a thread switches from one core to another several hundreds of times per job. A tiny gain in CPU time can be expected with option '''-task-manager''' on a laptop but only one ''geopsy-fk'' process can by run at time because they will share the same cores rather than being distributed on all cores.
 The phase velocity, the ellipticity, the noise parameters, the azimuth and the beam power are view with
    $ gpviewmax ards-3C.max
 == Rayleigh Three-component BeamForming (RTBF) ==

@@ Line 263: / Line 263: @@
 ! Results
 |-
-|limits.param, conventional
+|limits.param, conventional like before 2018
 |Debian 11 (Qt 5)
 |4