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Last modified: 28 September 2015

URL: http://cxc.harvard.edu/ciao/releasenotes/ciao_3.4.1_release.html

CIAO 3.4.1 and 3.4.1.1 Release Notes


[New] (29 Jan 2007)
CIAO 3.4 for Mac OS X 10.4 on PowerPC has been patched to 3.4.1.
CIAO 3.4 for Mac OS X 10.4 on Intel has been patched to 3.4.1.1.

Solaris and Linux platforms are not affected by these patches.

CIAO 3.4 Release Notes



CIAO 3.4.1: Mac OS X 10.4 on PowerPC

  • The CIAO 3.4.1 patch fixes problems running prism and filtwin under Mac OS X 10.4 on PowerPC. This patch has no effect when installed under Mac OS X 10.2 or 10.3 on PowerPC. The patch file upgrades CIAO 3.4 to CIAO 3.4.1.

Sherpa: using exposure maps when fitting image data

  • The Sherpa fexpmap2d command does not work under Mac OS X 10.4 on PowerPC or Intel.

    To load an exposure map for use in image fitting, use the gridmodel model in its place:

      gridmodel[thename](emap.fits,1)
      source = <source expression> * thename
    

    This is equivalent to the fexpmap2d syntax:

      source = <source expression>
      fexpmap2d[thename](emap.fits,1)
      instrument = thename
    

CIAO 3.4.1.1: Mac OS X 10.4 on Intel

  • The CIAO 3.4.1.1 patch makes it possible to run all tools and UI (e.g. Sherpa and ChIPS) under Mac OS X 10.4 on Intel. Intel Mac users do not need to install the CIAO 3.4.1 patch; the CIAO 3.4.1.1 patch file is a direct upgrade to CIAO 3.4.

    The CIAO software for Intel runs under Apple's Rosetta software [http://www.apple.com/rosetta/], which is included in Mac OS X for Intel machines. A native Intel build of CIAO will be released in 2007.

    There are some performance test results of running CIAO on Intel Mac under Rosetta at the end of these release notes.

Sherpa: using exposure maps when fitting image data

  • The Sherpa fexpmap2d command does not work under Mac OS X 10.4 on PowerPC or Intel.

    To load an exposure map for use in image fitting, use the gridmodel model in its place:

      gridmodel[thename](emap.fits,1)
      source = <source expression> * thename
    

    This is equivalent to the fexpmap2d syntax:

      source = <source expression>
      fexpmap2d[thename](emap.fits,1)
      instrument = thename
    

Sherpa: user models

  • The Sherpa user-model package (sherpa_user.tar.gz) has been updated to support the CIAO 3.4.1.1 release. The OS X Makefiles have been changed to allow building on Intel Mac systems.

Performance Tests

  • The results of this brief performance testing gives users an idea of how running CIAO on an Intel Mac under Rosetta compares to other platforms.

    The machines used in test 1 and 2 are:

    • Sun Ultra 80 running Solaris 8 with 4 GB memory
    • Sun Java W2100Z running RHEL-4 with 8 GB memory
    • MacBook Pro Core 2 Duo 2.33 GHz with 2 GB memory, running CIAO under Rosetta

    Test 1: binning up a 1.9 million events HRC event list using dmcopy and a [bin x=::8,y=::8] specification.

    Test 2: running hrc_process_events on a 2.9 million events HRC file.

    Machine Test 1 (dmcopy) Test 2 (hrc_process_events)
    Total CPU Elapsed Time Total CPU Elapsed Time
    Sun Ultra 39.58 sec 47.46 sec 939.70 sec 1026.27 sec
    Sun Java 8.709 sec 21.22 sec 143.135 sec 225.05 sec
    MacBook Pro 10.785 sec 13.021 sec 246.935 sec 256.463 sec
  • The machines used in test 3 are:

    • Macbook Pro laptop with a 2.16 Ghz Intel Core Duo processor, running CIAO under Rosetta
    • Mac PowerPC 1.8 Ghz PPC G5 (single core)
    • Linux running RHEL-4 with 2 GB memory
    • Sun Blade 150 running Solaris 8 with 2.5 GB memory

    Test 3: running a 2D fit and projection in Sherpa on a 1256^2 image with the beta2d model using cash statistics.

    Elapsed time has been rounded to the nearest 15 sec.

    Machine Elapsed Time
    Macbook Pro 21:00 min
    Mac PowerPC 18:30 min
    Linux 17:00 min
    Sun Blade 56:15 min


Last modified: 28 September 2015
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