Hello world program hangs :(

I have generated the binary file of the hello world program. I have used the host program to launch it. However, it never completes. It gets stuck at the line

status = clFinish(queue);

Here is my output of the program.

manoj@EV-PHD-ROS-PC:~/Documents/exm_opencl_hello_world_x64_linux/hello_world/bin$ ./host

Querying platform for info:

==========================

CL_PLATFORM_NAME = Intel(R) FPGA SDK for OpenCL(TM)

CL_PLATFORM_VENDOR = Intel(R) Corporation

CL_PLATFORM_VERSION = OpenCL 1.0 Intel(R) FPGA SDK for OpenCL(TM), Version 17.1.2

Querying device for info:

========================

CL_DEVICE_NAME = a10gx : Arria 10 Reference Platform (acla10_ref0)

CL_DEVICE_VENDOR = Intel(R) Corporation

CL_DEVICE_VENDOR_ID = 4466

CL_DEVICE_VERSION = OpenCL 1.0 Intel(R) FPGA SDK for OpenCL(TM), Version 17.1.2

CL_DRIVER_VERSION = 17.1

CL_DEVICE_ADDRESS_BITS = 64

CL_DEVICE_AVAILABLE = true

CL_DEVICE_ENDIAN_LITTLE = true

CL_DEVICE_GLOBAL_MEM_CACHE_SIZE = 32768

CL_DEVICE_GLOBAL_MEM_CACHELINE_SIZE = 0

CL_DEVICE_GLOBAL_MEM_SIZE = 2147483648

CL_DEVICE_IMAGE_SUPPORT = true

CL_DEVICE_LOCAL_MEM_SIZE = 16384

CL_DEVICE_MAX_CLOCK_FREQUENCY = 1000

CL_DEVICE_MAX_COMPUTE_UNITS = 1

CL_DEVICE_MAX_CONSTANT_ARGS = 8

CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE = 536870912

CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS = 3

CL_DEVICE_MEM_BASE_ADDR_ALIGN = 8192

CL_DEVICE_MIN_DATA_TYPE_ALIGN_SIZE = 1024

CL_DEVICE_PREFERRED_VECTOR_WIDTH_CHAR = 4

CL_DEVICE_PREFERRED_VECTOR_WIDTH_SHORT = 2

CL_DEVICE_PREFERRED_VECTOR_WIDTH_INT = 1

CL_DEVICE_PREFERRED_VECTOR_WIDTH_LONG = 1

CL_DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT = 1

CL_DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE = 0

Command queue out of order? = false

Command queue profiling enabled? = true

Using AOCX: hello_world.aocx

Reprogramming device [0] with handle 1

MMD INFO : Autodetect Cable not found!!

MMD INFO : setting Cable to default value 1

MMD INFO : setting Device Index to default value 1

MMD INFO : executing "quartus_pgm -c 1 -m jtag -o "P;reprogram_temp.sof@1""

Info: *******************************************************************

Info: Running Quartus Prime Programmer

Info: Version 17.1.2 Build 304 01/31/2018 SJ Pro Edition

Info: Copyright (C) 2018 Intel Corporation. All rights reserved.

Info: Your use of Intel Corporation's design tools, logic functions

Info: and other software and tools, and its AMPP partner logic

Info: functions, and any output files from any of the foregoing

Info: (including device programming or simulation files), and any

Info: associated documentation or information are expressly subject

Info: to the terms and conditions of the Intel Program License

Info: Subscription Agreement, the Intel Quartus Prime License Agreement,

Info: the Intel FPGA IP License Agreement, or other applicable license

Info: agreement, including, without limitation, that your use is for

Info: the sole purpose of programming logic devices manufactured by

Info: Intel and sold by Intel or its authorized distributors. Please

Info: refer to the applicable agreement for further details.

Info: Processing started: Fri May 18 11:38:58 2018

Info: Command: quartus_pgm -c 1 -m jtag -o P;reprogram_temp.sof@1

Info (213045): Using programming cable "USB-BlasterII [3-3]"

Info (213011): Using programming file reprogram_temp.sof with checksum 0x308535CE for device 10AX115S2F45@1

Info (209060): Started Programmer operation at Fri May 18 11:39:05 2018

Info (209016): Configuring device index 1

Info (209017): Device 1 contains JTAG ID code 0x02E060DD

Info (209007): Configuration succeeded -- 1 device(s) configured

Info (209011): Successfully performed operation(s)

Info (209061): Ended Programmer operation at Fri May 18 11:39:20 2018

Info: Quartus Prime Programmer was successful. 0 errors, 0 warnings

Info: Peak virtual memory: 1685 megabytes

Info: Processing ended: Fri May 18 11:39:20 2018

Info: Elapsed time: 00:00:22

Info: Total CPU time (on all processors): 00:00:11

Kernel initialization is complete.

Launching the kernel...

and never completes. I see that the kernel is launched. But it waits for the events to get completed.

And whenever I use aocl program command I get

MMD INFO : Autodetect Cable not found!!

MMD INFO : setting Cable to default value 1

MMD INFO : setting Device Index to default value 1

MMD INFO : executing "quartus_pgm -c 1 -m jtag -o "P;reprogram_temp.sof@1""

For some reason PCIe is not being used to program. When I cancel and quit the session, I have to kill the jtagd, and use quartus_pgm -a in order to reprogram. Otherwise I get

Error (213013): Programming hardware cable not detected

Why? Am I doing something wrong. Is this because of PCIe connection? I have checked lspci | grep Altera and everything seems to be alright!

lspci | grep Altera

03:00.0 Processing accelerators: Altera Corporation Device 2494 (rev 01)

Regards,

Manoj.