Posts by Claggy

1) Message boards : Cruncher's Corner : Building Boinc for Einstein@Home and the Raspberry Pi 2 (Message 142397)
Posted 21 days ago by Claggy
I've reported the problem of the Boinc client not displaying the Arm CPU model, it's been fixed, and backported into the 7.2, 7.4. and 7.6 heads,

If you want the fix applied to a self compiled client you should compile Boinc from the 7.2, 7.4 or 7.6 head and not a tagged client_release, use one of the following:

git checkout client_release/7/7.2

git checkout client_release/7/7.4

git checkout client_release/7/7.6

Claggy
2) Message boards : Cruncher's Corner : Using Intel iGPU on Windows 10, anyone have advice? (Message 142307)
Posted 25 days ago by Claggy
I have enabled Intel Graphics in the project preferences page.

The event log just says:
01/08/2015 17:37:58 | Einstein@Home | Not requesting tasks: don't need (CPU: ; NVIDIA GPU: job cache full)

Boinc isn't detecting the Intel GPU, you'll have to either connect a monitor, or extend the desktop onto it before Boinc will be able to detect it.

host 11853017

Then you can worry about drivers.

Claggy
3) Message boards : Problems and Bug Reports : samsung S6 (Message 141590)
Posted 67 days ago by Claggy
my phone and tablet are not getting work . I was running OK . any ideas

What does the Boinc startup say, what does the server last contact say, according to the 'Computers belonging to Robby1959 page, you only have a Intel Xeon X5460 attached here!!!!

Claggy
4) Message boards : Cruncher's Corner : Building Boinc for Einstein@Home and the Raspberry Pi 2 (Message 141383)
Posted 82 days ago by Claggy
What does the Boinc startup in the Event Log say? It could be that you're not allocating enough memory to run four tasks, mine is set to 75% when in use, 90% when not in use,
My Boinc startup, I'm presently running four Setiathome tasks, when is suspend them all, and grab four Einstein tasks, all four start:

Sat 06 Jun 2015 08:54:01 UTC | | Starting BOINC client version 7.2.47 for armv7l-unknown-linux-gnueabihf
Sat 06 Jun 2015 08:54:01 UTC | | log flags: file_xfer, sched_ops, task, sched_op_debug
Sat 06 Jun 2015 08:54:01 UTC | | Libraries: libcurl/7.26.0 OpenSSL/1.0.1e zlib/1.2.7 libidn/1.25 libssh2/1.4.2 librtmp/2.3
Sat 06 Jun 2015 08:54:01 UTC | | Data directory: /home/pi/BOINC
Sat 06 Jun 2015 08:54:01 UTC | | No usable GPUs found
Sat 06 Jun 2015 08:54:01 UTC | SETI@home Beta Test | Found app_info.xml; using anonymous platform
Sat 06 Jun 2015 08:54:01 UTC | SETI@home | Found app_info.xml; using anonymous platform
Sat 06 Jun 2015 08:54:01 UTC | | Host name: raspberrypi
Sat 06 Jun 2015 08:54:01 UTC | | Processor: 4 ARM
Sat 06 Jun 2015 08:54:01 UTC | | Processor features: half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
Sat 06 Jun 2015 08:54:01 UTC | | OS: Linux: 3.18.14-v7+
Sat 06 Jun 2015 08:54:01 UTC | | Memory: 927.13 MB physical, 100.00 MB virtual
Sat 06 Jun 2015 08:54:01 UTC | | Disk: 14.48 GB total, 9.01 GB free
Sat 06 Jun 2015 08:54:01 UTC | | Local time is UTC +0 hours
Sat 06 Jun 2015 08:54:01 UTC | Albert@Home | URL http://albert.phys.uwm.edu/; Computer ID 12650; resource share 100
Sat 06 Jun 2015 08:54:01 UTC | SETI@home Beta Test | URL http://setiweb.ssl.berkeley.edu/beta/; Computer ID 74138; resource share 100
Sat 06 Jun 2015 08:54:01 UTC | Einstein@Home | URL http://einstein.phys.uwm.edu/; Computer ID 11741356; resource share 100
Sat 06 Jun 2015 08:54:01 UTC | SETI@home | URL http://setiathome.berkeley.edu/; Computer ID 7495179; resource share 100
Sat 06 Jun 2015 08:54:01 UTC | SETI@home | General prefs: from SETI@home (last modified 02-Feb-2015 14:45:48)
Sat 06 Jun 2015 08:54:01 UTC | SETI@home | Host location: none
Sat 06 Jun 2015 08:54:01 UTC | SETI@home | General prefs: using your defaults
Sat 06 Jun 2015 08:54:01 UTC | | Reading preferences override file
Sat 06 Jun 2015 08:54:01 UTC | | Preferences:
Sat 06 Jun 2015 08:54:01 UTC | | max memory usage when active: 695.35MB
Sat 06 Jun 2015 08:54:01 UTC | | max memory usage when idle: 834.42MB
Sat 06 Jun 2015 08:54:01 UTC | | max disk usage: 1.00GB
Sat 06 Jun 2015 08:54:01 UTC | | (to change preferences, visit a project web site or select Preferences in the Manager)
Sat 06 Jun 2015 08:54:01 UTC | | Not using a proxy
Sat 06 Jun 2015 08:54:01 UTC | | Running CPU benchmarks
Sat 06 Jun 2015 08:54:01 UTC | | Suspending computation - CPU benchmarks in progress
Sat 06 Jun 2015 08:54:33 UTC | | Benchmark results:
Sat 06 Jun 2015 08:54:33 UTC | | Number of CPUs: 4
Sat 06 Jun 2015 08:54:33 UTC | | 464 floating point MIPS (Whetstone) per CPU
Sat 06 Jun 2015 08:54:33 UTC | | 1701 integer MIPS (Dhrystone) per CPU
Sat 06 Jun 2015 11:17:55 UTC | SETI@home | General prefs: from SETI@home (last modified 02-Feb-2015 14:45:48)
Sat 06 Jun 2015 11:17:55 UTC | SETI@home | Host location: none
Sat 06 Jun 2015 11:17:55 UTC | SETI@home | General prefs: using your defaults
Sat 06 Jun 2015 11:17:55 UTC | | Reading preferences override file
Sat 06 Jun 2015 11:17:55 UTC | | Preferences:
Sat 06 Jun 2015 11:17:55 UTC | | max memory usage when active: 695.35MB
Sat 06 Jun 2015 11:17:55 UTC | | max memory usage when idle: 834.42MB
Sat 06 Jun 2015 11:17:55 UTC | | max disk usage: 1.00GB
Sat 06 Jun 2015 11:17:55 UTC | | (to change preferences, visit a project web site or select Preferences in the Manager)
Sat 06 Jun 2015 11:18:00 UTC | SETI@home | task 09oc12ac.1013.19290.438086664198.12.142.vlar_0 suspended by user
Sat 06 Jun 2015 11:18:01 UTC | SETI@home | task 01au12aa.29304.24615.438086664202.12.76_0 suspended by user
Sat 06 Jun 2015 11:18:01 UTC | SETI@home | task 01au12aa.29304.24615.438086664202.12.78_0 suspended by user
Sat 06 Jun 2015 11:18:01 UTC | SETI@home | task 04jl12ab.25531.16427.438086664204.12.50_1 suspended by user
Sat 06 Jun 2015 11:18:01 UTC | SETI@home | task 17au12aa.26687.378016.438086664199.12.254_0 suspended by user
Sat 06 Jun 2015 11:18:01 UTC | SETI@home | task 25fe13aa.10982.7429.438086664201.12.167_0 suspended by user
Sat 06 Jun 2015 11:18:01 UTC | SETI@home | task 25fe13aa.14104.16427.438086664206.12.139_0 suspended by user
Sat 06 Jun 2015 11:18:01 UTC | SETI@home | task 29au12ac.19012.3339.438086664195.12.34_1 suspended by user
Sat 06 Jun 2015 11:18:01 UTC | SETI@home | task 02dc12ad.17794.371144.438086664199.12.189_0 suspended by user
Sat 06 Jun 2015 11:18:01 UTC | SETI@home | task 26se12ad.530.21744.438086664203.12.108_1 suspended by user
Sat 06 Jun 2015 11:18:01 UTC | SETI@home | task 26se12ad.6148.19699.438086664204.12.43_1 suspended by user
Sat 06 Jun 2015 11:18:01 UTC | SETI@home | task 30my12ac.29004.19852.438086664202.12.224_1 suspended by user
Sat 06 Jun 2015 11:18:03 UTC | SETI@home | task 04my12ah.23634.1459.438086664199.12.76_0 suspended by user
Sat 06 Jun 2015 11:18:05 UTC | SETI@home | task 07my12ab.11848.3748.438086664195.12.136_0 suspended by user
Sat 06 Jun 2015 11:18:11 UTC | SETI@home | task 16oc12ac.9858.23789.438086664204.12.122_2 suspended by user
Sat 06 Jun 2015 11:18:11 UTC | SETI@home | task 07my12ab.11848.3748.438086664195.12.109_0 suspended by user
Sat 06 Jun 2015 11:18:16 UTC | Einstein@Home | work fetch resumed by user
Sat 06 Jun 2015 11:18:17 UTC | Einstein@Home | [sched_op] Starting scheduler request
Sat 06 Jun 2015 11:18:17 UTC | Einstein@Home | Sending scheduler request: To fetch work.
Sat 06 Jun 2015 11:18:17 UTC | Einstein@Home | Requesting new tasks for CPU
Sat 06 Jun 2015 11:18:17 UTC | Einstein@Home | [sched_op] CPU work request: 172800.00 seconds; 4.00 devices
Sat 06 Jun 2015 11:18:20 UTC | Einstein@Home | Scheduler request completed: got 4 new tasks
Sat 06 Jun 2015 11:18:20 UTC | Einstein@Home | [sched_op] Server version 611
Sat 06 Jun 2015 11:18:20 UTC | Einstein@Home | Project requested delay of 60 seconds
Sat 06 Jun 2015 11:18:20 UTC | Einstein@Home | [sched_op] estimated total CPU task duration: 311232 seconds
Sat 06 Jun 2015 11:18:20 UTC | Einstein@Home | [sched_op] Deferring communication for 00:01:00
Sat 06 Jun 2015 11:18:20 UTC | Einstein@Home | [sched_op] Reason: requested by project
Sat 06 Jun 2015 11:18:22 UTC | Einstein@Home | Started download of p2030.20141113.G179.63+00.65.S.b1s0g0.00000_2101.bin4
Sat 06 Jun 2015 11:18:22 UTC | Einstein@Home | Started download of p2030.20141113.G179.63+00.65.S.b1s0g0.00000.zap
Sat 06 Jun 2015 11:18:23 UTC | Einstein@Home | Finished download of p2030.20141113.G179.63+00.65.S.b1s0g0.00000_2101.bin4
Sat 06 Jun 2015 11:18:23 UTC | Einstein@Home | Finished download of p2030.20141113.G179.63+00.65.S.b1s0g0.00000.zap
Sat 06 Jun 2015 11:18:23 UTC | Einstein@Home | Started download of p2030.20141112.G191.66+00.22.N.b4s0g0.00000_3282.bin4
Sat 06 Jun 2015 11:18:23 UTC | Einstein@Home | Started download of p2030.20141112.G191.66+00.22.N.b4s0g0.00000.zap
Sat 06 Jun 2015 11:18:23 UTC | Einstein@Home | Starting task p2030.20141113.G179.63+00.65.S.b1s0g0.00000_2101_2
Sat 06 Jun 2015 11:18:25 UTC | Einstein@Home | Finished download of p2030.20141112.G191.66+00.22.N.b4s0g0.00000_3282.bin4
Sat 06 Jun 2015 11:18:25 UTC | Einstein@Home | Finished download of p2030.20141112.G191.66+00.22.N.b4s0g0.00000.zap
Sat 06 Jun 2015 11:18:25 UTC | Einstein@Home | Started download of p2030.20141112.G191.66+00.22.N.b4s0g0.00000_3283.bin4
Sat 06 Jun 2015 11:18:25 UTC | Einstein@Home | Started download of p2030.20141112.G191.66+00.22.N.b4s0g0.00000_3284.bin4
Sat 06 Jun 2015 11:18:25 UTC | Einstein@Home | Starting task p2030.20141112.G191.66+00.22.N.b4s0g0.00000_3282_1
Sat 06 Jun 2015 11:18:26 UTC | Einstein@Home | Finished download of p2030.20141112.G191.66+00.22.N.b4s0g0.00000_3283.bin4
Sat 06 Jun 2015 11:18:26 UTC | Einstein@Home | Finished download of p2030.20141112.G191.66+00.22.N.b4s0g0.00000_3284.bin4
Sat 06 Jun 2015 11:18:26 UTC | Einstein@Home | Starting task p2030.20141112.G191.66+00.22.N.b4s0g0.00000_3284_0
Sat 06 Jun 2015 11:18:26 UTC | Einstein@Home | Starting task p2030.20141112.G191.66+00.22.N.b4s0g0.00000_3283_0
Sat 06 Jun 2015 11:18:33 UTC | SETI@home | task 16oc12ac.9858.23789.438086664204.12.122_2 resumed by user
Sat 06 Jun 2015 11:18:33 UTC | SETI@home | task 07my12ab.11848.3748.438086664195.12.109_0 resumed by user


Claggy
5) Message boards : Cruncher's Corner : CPU Benchmark test not finding all CPU's (Message 141169)
Posted 95 days ago by Claggy
Both your hosts report 4 CPU cores according to Boinc:

Computers belonging to msketers

You'll have to post the log messages for us to understand what you're talking about.

Claggy
6) Message boards : Cafe Einstein : Suddenly puzzling error message (Message 141156)
Posted 96 days ago by Claggy
You posted this same problem over in Technical News, where I made some detailed comments I won't repeat here.

He posted here first, but might have been redirected..... ;)

I don't monitor the café subforum here, so hadn't noticed he'd already posted here.

Claggy
7) Message boards : Problems and Bug Reports : BOINC claims no disk space available despite many GB being there (Message 141152)
Posted 96 days ago by Claggy
So how do I fix the problem? As I say, there is plenty of free disk drive available yet the error message says none is available. I have not changed anything since installing the program.
Lawrence

You're set disk_min_free_gb as 50.00GB, you only have 48.91GB free, Set the 'Disk: leave free at least x GB' to a lower value, say 5GB, instead of 50GB, in either the Web Computing Preferences, or locally in Boinc Manager if you're using local computing preferences (these override the web computing preferences).

Claggy
8) Message boards : Problems and Bug Reports : BOINC claims no disk space available despite many GB being there (Message 141147)
Posted 96 days ago by Claggy
I am running the latest BOINC client software and both my programs have stopped running - reporting the same error message claiming that no space is available despite many Gb being there. Any advice? Lawrence

Your contact log says you're not allocating enough space, or more to the point reserving too much:

http://einstein.phys.uwm.edu/host_sched_logs/3262/3262088
2015-05-23 12:31:56.4342 [PID=17588] Request: [USER#xxxxx] [HOST#3262088] [IP xxx.xxx.xxx.3] client 7.2.47
2015-05-23 12:31:56.4354 [PID=17588] [send] No disk space available: disk_max_used_gb 40.00GB disk_max_used_pct 20.00 disk_min_free_gb 50.00GB
2015-05-23 12:31:56.4354 [PID=17588] [send] No disk space available: host.d_total 156.75GB host.d_free 48.91GB host.d_boinc_used_total 0.32GB
2015-05-23 12:31:56.4354 [PID=17588] [send] No disk space available: x1 39.68GB x2 31.03GB x3 -1.09GB x -1.09GB
2015-05-23 12:31:56.4354 [PID=17588] [send] effective_ncpus 1 max_jobs_on_host_cpu 999999 max_jobs_on_host 999999
2015-05-23 12:31:56.4354 [PID=17588] [send] effective_ngpus 1 max_jobs_on_host_gpu 999999
2015-05-23 12:31:56.4354 [PID=17588] [send] Not using matchmaker scheduling; Not using EDF sim
2015-05-23 12:31:56.4354 [PID=17588] [send] CPU: req 21780.00 sec, 1.00 instances; est delay 0.00
2015-05-23 12:31:56.4355 [PID=17588] [send] CUDA: req 21780.00 sec, 1.00 instances; est delay 0.00
2015-05-23 12:31:56.4355 [PID=17588] [send] work_req_seconds: 21780.00 secs
2015-05-23 12:31:56.4355 [PID=17588] [send] available disk 0.00 GB, work_buf_min 0
2015-05-23 12:31:56.4355 [PID=17588] [send] active_frac 0.922812 on_frac 0.466281 DCF 1.556234
2015-05-23 12:31:56.4361 [PID=17588] [send] [HOST#3262088] is reliable
2015-05-23 12:31:56.4362 [PID=17588] [send] set_trust: random choice for error rate 0.032352: no
2015-05-23 12:31:56.4362 [PID=17588] [mixed] sending locality work first (0.4829)
2015-05-23 12:31:56.4367 [PID=17588] [send] stopping work search - insufficient disk space
2015-05-23 12:31:56.4367 [PID=17588] [send] stopping work search - insufficient disk space
2015-05-23 12:31:56.4367 [PID=17588] [mixed] sending non-locality work second
2015-05-23 12:31:56.4664 [PID=17588] [version] Checking plan class 'opencl-intel_gpu'
2015-05-23 12:31:56.4693 [PID=17588] [version] reading plan classes from file '/BOINC/projects/EinsteinAtHome/plan_class_spec.xml'
2015-05-23 12:31:56.4693 [PID=17588] [version] parsed project prefs setting 'gpu_util_brp': 0.000000
2015-05-23 12:31:56.4693 [PID=17588] [version] No Intel GPU devices found
2015-05-23 12:31:56.4694 [PID=17588] [version] Checking plan class 'opencl-intel_gpu-Beta'
2015-05-23 12:31:56.4694 [PID=17588] [version] beta test app versions not allowed in project prefs.
2015-05-23 12:31:56.4694 [PID=17588] [version] Checking plan class 'opencl-intel_gpu-new'
2015-05-23 12:31:56.4694 [PID=17588] [version] parsed project prefs setting 'gpu_util_brp': 0.000000
2015-05-23 12:31:56.4694 [PID=17588] [version] No Intel GPU devices found
2015-05-23 12:31:56.4694 [PID=17588] [version] Checking plan class 'opencl-intel_gpu'
2015-05-23 12:31:56.4694 [PID=17588] [version] parsed project prefs setting 'gpu_util_brp': 0.000000
2015-05-23 12:31:56.4694 [PID=17588] [version] No Intel GPU devices found
2015-05-23 12:31:56.4694 [PID=17588] [version] no app version available: APP#19 (einsteinbinary_BRP4) PLATFORM#9 (windows_x86_64) min_version 0
2015-05-23 12:31:56.4694 [PID=17588] [version] no app version available: APP#19 (einsteinbinary_BRP4) PLATFORM#2 (windows_intelx86) min_version 0
2015-05-23 12:31:56.4696 [PID=17588] [version] Checking plan class 'FGRP4-SSE2'
2015-05-23 12:31:56.4696 [PID=17588] [version] plan class ok
2015-05-23 12:31:56.4697 [PID=17588] [version] Best version of app hsgamma_FGRP4 is 1.05 ID 679 FGRP4-SSE2 (2.20 GFLOPS)
2015-05-23 12:31:56.4697 [PID=17588] [send] [HOST#3262088] [WU#219479449 LATeah1052E_1392.0_1040997_0.0] WU is infeasible: Not enough disk space
2015-05-23 12:31:56.4697 [PID=17588] [version] Checking plan class 'BRP6-Beta-opencl-intel_gpu'
2015-05-23 12:31:56.4697 [PID=17588] [version] beta test app versions not allowed in project prefs.
2015-05-23 12:31:56.4697 [PID=17588] [version] Checking plan class 'BRP6-opencl-ati'
2015-05-23 12:31:56.4697 [PID=17588] [version] parsed project prefs setting 'gpu_util_brp': 0.000000
2015-05-23 12:31:56.4698 [PID=17588] [version] No ATI devices found
2015-05-23 12:31:56.4698 [PID=17588] [version] Checking plan class 'BRP6-Beta-opencl-intel_gpu'
2015-05-23 12:31:56.4698 [PID=17588] [version] beta test app versions not allowed in project prefs.
2015-05-23 12:31:56.4698 [PID=17588] [version] Checking plan class 'BRP6-cuda32'
2015-05-23 12:31:56.4698 [PID=17588] [version] parsed project prefs setting 'gpu_util_brp': 0.000000
2015-05-23 12:31:56.4698 [PID=17588] [version] driver version required max: -29053, supplied: 34144
2015-05-23 12:31:56.4698 [PID=17588] [version] Checking plan class 'BRP6-cuda32-nv301'
2015-05-23 12:31:56.4698 [PID=17588] [version] parsed project prefs setting 'gpu_util_brp': 0.000000
2015-05-23 12:31:56.4698 [PID=17588] [version] Peak flops supplied: 1.1616e+11
2015-05-23 12:31:56.4698 [PID=17588] [version] plan class ok
2015-05-23 12:31:56.4698 [PID=17588] [version] Checking plan class 'BRP6-opencl-ati'
2015-05-23 12:31:56.4698 [PID=17588] [version] parsed project prefs setting 'gpu_util_brp': 0.000000
2015-05-23 12:31:56.4698 [PID=17588] [version] No ATI devices found
2015-05-23 12:31:56.4698 [PID=17588] [version] Best version of app einsteinbinary_BRP6 is 1.52 ID 720 BRP6-cuda32-nv301 (21.82 GFLOPS)
2015-05-23 12:31:56.4821 [PID=17588] [send] No disk space available: disk_max_used_gb 40.00GB disk_max_used_pct 20.00 disk_min_free_gb 50.00GB
2015-05-23 12:31:56.4821 [PID=17588] [send] No disk space available: host.d_total 156.75GB host.d_free 48.91GB host.d_boinc_used_total 0.32GB
2015-05-23 12:31:56.4821 [PID=17588] [send] No disk space available: x1 39.68GB x2 31.03GB x3 -1.09GB x -1.09GB
2015-05-23 12:31:56.4821 [PID=17588] [CRITICAL] [HOST#3262088]: no disk space but no files we can delete!
2015-05-23 12:31:56.4822 [PID=17588] [send] No disk space available: disk_max_used_gb 40.00GB disk_max_used_pct 20.00 disk_min_free_gb 50.00GB
2015-05-23 12:31:56.4822 [PID=17588] [send] No disk space available: host.d_total 156.75GB host.d_free 48.91GB host.d_boinc_used_total 0.32GB
2015-05-23 12:31:56.4822 [PID=17588] [send] No disk space available: x1 39.68GB x2 31.03GB x3 -1.09GB x -1.09GB
2015-05-23 12:31:56.4822 [PID=17588] [debug] [HOST#3262088] MSG(high) No work sent
2015-05-23 12:31:56.4822 [PID=17588] [debug] [HOST#3262088] MSG(high) see scheduler log messages on http://einstein5.aei.uni-hannover.de/EinsteinAtHome/host_sched_logs/3262/3262088
2015-05-23 12:31:56.4822 [PID=17588] [debug] [HOST#3262088] MSG(high) Gamma-ray pulsar search #4 needs 19.07MB more disk space. You currently have 0.00 MB available and it needs 19.07 MB.
2015-05-23 12:31:56.4822 [PID=17588] [debug] [HOST#3262088] MSG(high) Binary Radio Pulsar Search (Parkes PMPS XT) needs 152.59MB more disk space. You currently have 0.00 MB available and it needs 152.59 MB.
2015-05-23 12:31:56.4822 [PID=17588] [debug] [HOST#3262088] MSG(high) No disk space (YOU must free -0.0 MB before BOINC gets space). Review preferences for minimum disk free space allowed.
2015-05-23 12:31:56.4822 [PID=17588] Sending reply to [HOST#3262088]: 0 results, delay req 3600.00
2015-05-23 12:31:56.4832 [PID=17588] Scheduler ran 0.052 seconds


Claggy
9) Message boards : Problems and Bug Reports : Stuck in benchmarks (Message 140749)
Posted 116 days ago by Claggy
You can try setting <skip_cpu_benchmarks>1</skip_cpu_benchmarks> in a cc_config.xml

http://boinc.berkeley.edu/wiki/Client_configuration

<skip_cpu_benchmarks>0|1</skip_cpu_benchmarks>This will disable the periodic benchmark testing as well as block the 'run CPU benchmarks' from the manager menu.


Claggy
10) Message boards : Problems and Bug Reports : Stuck in benchmarks (Message 140747)
Posted 116 days ago by Claggy
Restart Boinc?

Claggy


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This material is based upon work supported by the National Science Foundation (NSF) under Grants PHY-1104902, PHY-1104617 and PHY-1105572 and by the Max Planck Gesellschaft (MPG). Any opinions, findings, and conclusions or recommendations expressed in this material are those of the investigators and do not necessarily reflect the views of the NSF or the MPG.

Copyright © 2015 Bruce Allen