ianpjohnson

perf stat - 10 iterations
OMP_NUM_THREADS=1
-----------------
Performance counter stats for 'mvn exec:java -Dexec.mainClass=org.deeplearning4j.examples.recurrent.character.GravesLSTMCharModellingExample':

      19368.054321      task-clock (msec)         #    1.727 CPUs utilized
             6,844      context-switches          #    0.353 K/sec
               130      cpu-migrations            #    0.007 K/sec
           426,191      page-faults               #    0.022 M/sec
    69,717,328,193      cycles                    #    3.600 GHz                      (83.40%)

ianpjohnson

00:00.0 Host bridge: Intel Corporation Xeon E5/Core i7 DMI2 (rev 07)
        Subsystem: Intel Corporation Device 4953
        Flags: fast devsel
        Capabilities: [90] Express Root Port (Slot-), MSI 00
        Capabilities: [e0] Power Management version 3
        Capabilities: [100] Vendor Specific Information: ID=0002 Rev=0 Len=00c <?>
        Capabilities: [144] Vendor Specific Information: ID=0004 Rev=1 Len=03c <?>
        Capabilities: [1d0] Vendor Specific Information: ID=0003 Rev=1 Len=00a <?>
        Capabilities: [280] Vendor Specific Information: ID=0004 Rev=2 Len=018 <?>

ianpjohnson

lspci
00:00.0 Host bridge: Intel Corporation Xeon E5/Core i7 DMI2 (rev 07)
00:01.0 PCI bridge: Intel Corporation Xeon E5/Core i7 IIO PCI Express Root Port 1a (rev 07)
00:01.1 PCI bridge: Intel Corporation Xeon E5/Core i7 IIO PCI Express Root Port 1b (rev 07)
00:02.0 PCI bridge: Intel Corporation Xeon E5/Core i7 IIO PCI Express Root Port 2a (rev 07)
00:03.0 PCI bridge: Intel Corporation Xeon E5/Core i7 IIO PCI Express Root Port 3a in PCI Express Mode (rev 07)
00:05.0 System peripheral: Intel Corporation Xeon E5/Core i7 Address Map, VTd_Misc, System Management (rev 07)
00:05.2 System peripheral: Intel Corporation Xeon E5/Core i7 Control Status and Global Errors (rev 07)
00:05.4 PIC: Intel Corporation Xeon E5/Core i7 I/O APIC (rev 07)
00:11.0 PCI bridge: Intel Corporation C600/X79 series chipset PCI Express Virtual Root Port (rev 05)

ianpjohnson

Hi - Am recompiling master (pulled last night) from sources and am having a problem on my 6 Core i7  with performance on Ubuntu

Any clues what i might be doing wrong ?

Testing org.deeplearning4j.examples.recurrent.character.GravesLSTMCharModellingExample 

My Core i5 2500K Windows 8 (64) on Java 1.8 (also using OpenBLAS)  is about 8-10 times FASTER than the  Core i7 on Ubuntu 15.10

I have downloaded and rebuilt OpenBLAS, and followed instructions from git on libnd4j etc