bluescarni

diff --git a/src/step_callback.cpp b/src/step_callback.cpp
index c0fad146..b3cdc6e4 100644
--- a/src/step_callback.cpp
+++ b/src/step_callback.cpp
@@ -110,17 +110,17 @@ void swap(step_callback_impl<TA> &a, step_callback_impl<TA> &b) noexcept
 }
 
 // Explicit instantiations.
-template class step_callback_impl<taylor_adaptive<double>>;
+template class HEYOKA_DLL_PUBLIC step_callback_impl<taylor_adaptive<double>>;

bluescarni

Program received signal SIGSEGV, Segmentation fault.
0x00007fffe8a0ef9d in llvm::TargetPassConfig::addPass(llvm::Pass*, bool, bool) () from /home/yardbird/miniconda3/envs/heyoka/lib/python3.8/site-packages/llvmlite/binding/../../../../libLLVM-10.so
(gdb) bt
#0  0x00007fffe8a0ef9d in llvm::TargetPassConfig::addPass(llvm::Pass*, bool, bool) () from /home/yardbird/miniconda3/envs/heyoka/lib/python3.8/site-packages/llvmlite/binding/../../../../libLLVM-10.so
#1  0x00007fffe8a1250a in llvm::TargetPassConfig::addRegAssignmentOptimized() () from /home/yardbird/miniconda3/envs/heyoka/lib/python3.8/site-packages/llvmlite/binding/../../../../libLLVM-10.so
#2  0x00007fffe8a1273d in llvm::TargetPassConfig::addOptimizedRegAlloc() () from /home/yardbird/miniconda3/envs/heyoka/lib/python3.8/site-packages/llvmlite/binding/../../../../libLLVM-10.so
#3  0x00007fffe8a129cc in llvm::TargetPassConfig::addMachinePasses() () from /home/yardbird/miniconda3/envs/heyoka/lib/python3.8/site-packages/llvmlite/binding/../../../../libLLVM-1

bluescarni

0x00007ffff15618cc in llvm::TargetPassConfig::addPass(llvm::Pass*, bool, bool) () from /home/yardbird/miniconda3/envs/heyoka/bin/../lib/libLLVM-11.so
(gdb) bt
#0  0x00007ffff15618cc in llvm::TargetPassConfig::addPass(llvm::Pass*, bool, bool) () from /home/yardbird/miniconda3/envs/heyoka/bin/../lib/libLLVM-11.so
#1  0x00007ffff15645ca in llvm::TargetPassConfig::addRegAssignmentOptimized() () from /home/yardbird/miniconda3/envs/heyoka/bin/../lib/libLLVM-11.so
#2  0x00007ffff156497e in llvm::TargetPassConfig::addOptimizedRegAlloc() () from /home/yardbird/miniconda3/envs/heyoka/bin/../lib/libLLVM-11.so
#3  0x00007ffff1564f76 in llvm::TargetPassConfig::addMachinePasses() () from /home/yardbird/miniconda3/envs/heyoka/bin/../lib/libLLVM-11.so
#4  0x00007ffff12b08e2 in addPassesToGenerateCode(llvm::LLVMTargetMachine&, llvm::legacy::PassManagerBase&, bool, llvm::MachineModuleInfoWrapperPass&) () from /home/yardbird/miniconda3/envs/heyoka/bin/../lib/libLLVM-11.so
#5  0x00007ffff12b175a in llvm::LLVMTargetMachine::addPa

bluescarni

import matplotlib.pylab as plt
import numpy as np, heyoka as hey
from copy import deepcopy
from multiprocessing.pool import ThreadPool
pi = np.pi

nproc = 20
ninst = 50

n_ast = 25

bluescarni

Dr. Memory version 2.3.0 build 1 built on Feb  6 2020 06:07:09
Windows version: WinVer=102;Rel=1607;Build=14393;Edition=ServerDatacenter
Dr. Memory results for pid 508: "taylor_div.exe"
Application cmdline: "test\taylor_div.exe"
Recorded 118 suppression(s) from default c:\drmemory\bin64\suppress-default.txt

Error #1: UNINITIALIZED READ: reading register rax
# 0 heyoka.dll!llvm::DenseMap<>::grow
# 1 heyoka.dll!llvm::DenseMap<>::grow
# 2 heyoka.dll!llvm::DenseMap<>::grow

bluescarni

Dr. Memory version 2.3.0 build 1 built on Feb  6 2020 06:07:09
Windows version: WinVer=102;Rel=1607;Build=14393;Edition=ServerDatacenter
Dr. Memory results for pid 4796: "taylor_div.exe"
Application cmdline: "test\taylor_div.exe"
Recorded 118 suppression(s) from default c:\drmemory\bin64\suppress-default.txt

Error #1: UNINITIALIZED READ: reading register rax
# 0 heyoka.dll!llvm::DenseMap<>::grow
# 1 heyoka.dll!llvm::DenseMap<>::grow
# 2 heyoka.dll!llvm::DenseMap<>::grow

bluescarni

#ifndef PAGMO_DETAIL_CLING_REPR_HPP
#define PAGMO_DETAIL_CLING_REPR_HPP

#if defined(__CLING__)

#if __has_include(<nlohmann/json.hpp>)

#include <sstream>

#include <nlohmann/json.hpp>

bluescarni

class dask_island: 
  def run_evolve(self, algo, pop): 
    ret = client.submit(algo.evolve, pop) 
    return algo, ret.result()

bluescarni

     89045:	find library=libOpenCL.so.1 [0]; searching
     89045:	 search cache=/etc/ld.so.cache
     89045:	  trying file=/usr/lib64/OpenCL/vendors/ocl-icd/libOpenCL.so.1
     89045:	
     89045:	find library=libdl.so.2 [0]; searching
     89045:	 search cache=/etc/ld.so.cache
     89045:	  trying file=/lib64/libdl.so.2
     89045:	
     89045:	find library=libc.so.6 [0]; searching
     89045:	 search cache=/etc/ld.so.cache

bluescarni

#include <algorithm>

unsigned long long
gcd(unsigned long long x, unsigned long long y)
{
    if (x == 0) {
        return y;
    }
    if (y == 0) {
        return x;