forked from rarias/devshell
58 lines
2.0 KiB
Markdown
58 lines
2.0 KiB
Markdown
# OmpSs-2 environment
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This example shows how to include the LLVM compiler to build OmpSs-2 programs
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with the new NODES and nOS-V runtime. The package `clangOmpss2Nodes` already
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sets all the needed variables to locate the right runtime.
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Run `nix develop` then `make` to build the `hello` program:
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apex% nix develop
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apex$ make
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clang -fompss-2 hello.c -o hello
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apex$ ./hello
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hello from task 1
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hello from task 0
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hello from task 2
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hello from task 3
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hello from task 4
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hello from task 7
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hello from task 8
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hello from task 6
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hello from task 9
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hello from task 5
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You can use `make trace` to run the hello program with instrumentation and
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generate an ovni trace that is then converted to paraver:
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apex$ make trace
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rm -rf ovni/
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NOSV_CONFIG_OVERRIDE="instrumentation.version=ovni" NOSV_APPID=1 ./hello
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hello from task 1
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hello from task 0
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hello from task 3
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hello from task 4
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hello from task 5
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hello from task 6
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hello from task 2
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hello from task 8
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hello from task 7
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hello from task 9
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ovniemu ovni/
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ovniemu: INFO: loaded 58 streams
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ovniemu: INFO: sorting looms by name
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ovniemu: INFO: loaded 1 looms, 1 processes, 58 threads and 56 cpus
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ovniemu: INFO: generated with libovni version 1.13.0 commit 0643266
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ovniemu: INFO: the following 2 models are enabled:
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ovniemu: INFO: ovni 1.1.0 'O' (18 events)
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ovniemu: INFO: nosv 2.6.0 'V' (64 events)
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ovniemu: INFO: emulation starts
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ovniemu: INFO: apex.nosv-u1880-p598308 burst stats: median/avg/max = 77/ 81/333 ns
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ovniemu: WARN: ignoring old event OCn
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ovniemu: INFO: 100.0% done at avg 42 kev/s
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ovniemu: INFO: processed 711 input events in 0.02 s
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ovniemu: INFO: writing traces to disk, please wait
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ovniemu: INFO: emulation finished ok
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ls -l ovni/*.prv
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-rw-r--r-- 1 rarias Computational 48224 Feb 4 11:52 ovni/cpu.prv
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-rw-r--r-- 1 rarias Computational 33689 Feb 4 11:52 ovni/thread.prv
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